Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Best Engine for Larger Boats. This is the higest torque 454 Marine Engine with good fuel econony for big cruisers.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Best for Performance Boats. This Engine Gives You Maximum Power From Start to 4,600 RPM Great for Pulling Skiers & Tubes while using less fuel over stock. Gets out of the Hole Very Quickly.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Best Engine for Larger Boats. This is the higest torque 454 Marine Engine with good fuel econony for big cruisers.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Best for Performance Boats. This Engine Gives You Maximum Power From Start to 4,600 RPM Great for Pulling Skiers & Tubes while using less fuel over stock. Gets out of the Hole Very Quickly.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Best Engine for Larger Boats. This is the higest torque 454 Marine Engine with good fuel econony for big cruisers.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Best for Performance Boats. This Engine Gives You Maximum Power From Start to 4,600 RPM Great for Pulling Skiers & Tubes while using less fuel over stock. Gets out of the Hole Very Quickly.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Best Engine for Larger Boats. This is the higest torque 454 Marine Engine with good fuel econony for big cruisers.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Best for Performance Boats. This Engine Gives You Maximum Power From Start to 4,600 RPM Great for Pulling Skiers & Tubes while using less fuel over stock. Gets out of the Hole Very Quickly.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Best Engine for Larger Boats. This is the higest torque 454 Marine Engine with good fuel econony for big cruisers.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Best for Performance Boats. This Engine Gives You Maximum Power From Start to 4,600 RPM Great for Pulling Skiers & Tubes while using less fuel over stock. Gets out of the Hole Very Quickly.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.

Includes approximately 425 horsepower with approximately 375 horsepower at the prop. The 454 Magnum includes dome pistons that increase torque and horsepower. The 454 Magnum that includes 2" intake ports has increased torque over the 454 Magnum that includes 2 1/2" intake ports. Our tests have shown that the 454 Magnum Mercruiser engine is worth the extra money and offers a great return on investment. For RPMs over 4,000, large intake ports are best. RPMs of 1,500 to 4,500 get better power with smaller intake ports. Those who are replacing a 454 Chevy marine engine and desire to get more power while reducing fuel usage, should install the 454 Magnum engine.

Call for more information at 1-877-631-2628 or 253-852-3263. You can also click on the engine year and size for prices.