At 522hp (390kW), the 7.4L is the most powerful catalyzed production marine engine available today
The superior design and materials of Ilmor-developed internal components provide unsurpassed performance and parts reliability.
- Forged steel crankshaft
- Forged pistons
- Forged steel connecting rods
The naturally aspirated engine architecture provides more horsepower, better fuel economy, and longer parts durability than comparable supercharged engines.
The 7.4L conforms to EPA, CARB and EU emissions standards, producing nearly 70% lower Carbon Monoxide emissions than other gasoline engines of comparable horsepower – a benefit for wake surfers and boarders riding its massive wakes.
Each engine is hand built to the same quality standards as our IndyCar engines.
87 octane-compatible, offering the thrill of high-performance power without breaking the bank.
Sophisticated variable valve timing for overall enhanced performance – increased lower end torque and high RPM horsepower.
|Number of Cylinders||8|
|Power Rating||390 kW @ 5800 RPM (522 HP)|
|Peak Torque||524 ft-lbs @ 4400 RPM|
|Valve Configuration||Overhead Valves (2 per cylinder)|
|Valve Lifters||Hydraulic Roller|
|Bore and Stroke||106.299 x 104.77 mm|
|Bore Center||111.76 mm|
|Engine Weight (with V-drive transmission)||1085 lbs (492 kg)|
|Emissions Controls||Catalyst. 02 Sensor. ECU Controlled. OBD-M|
|Cylinder Block||Cast Iron|
|Cylinder Head||Cast Aluminum|
|Intake Manifold||Cast Aluminum Upper and Lower|
|Exhaust Manifold||Cast Iron|
|Connecting Rods||Forged Steel|
All illustrations and specifications are based on product information available at the time of publication. Ilmor Marine, LLC reserves the right to make changes at any time, without notice, in materials, equipment, specifications, and models.