HomeGarageRoush supercharges Raptor V8, but not for the road

Roush supercharges Raptor V8, but not for the road

This 510-horsepower Ford engine was created for use on the water


It has 6.2 liters of V8 displacement and a Roush supercharger boosting output to 510 horsepower and 580 pound-feet of torque, but it’s use is for travel well off-road. That’s well off-road as in on water because this engine is the Roushcharged Raptor 575 marine engine.

Roush Performance and Indmar Marine Engines are featuring the engine in a “Built for Life’s Adventures” video that features a Roush F-150 SC towing a Raptor 575-powered boat to the lake.

The 6.2-liter V8 is based on the engine that powers Ford’s F-150 Super Duty pickup trucks, but according to Indmar is 20 percent more fuel efficient and, notes Roush Performance and Indmar, it is the first emissions-certified supercharged marine engine of its kind.  

The engine features a marine-specific oil pan and pick-up tube designed for the steep angles and high-g turns at which a boat must operate. The engine uses aviation-grade spark plugs and features closed-cooling technology to maintain consistent operating temperatures while also preventing corrosion and protection from invasive aquatic species. 

The powertrain includes Indmar’s own transmission for smooth and quiet operation.

Raptor, Roush supercharges Raptor V8, but not for the road, ClassicCars.com Journal

Indmar was founded in the 1970s by Dick and Donna Rowe after Dick ended a 20-year stint in the US Marine Corps. They produced industrial and irrigation pumps based on V8 automobile engines and pioneered the use of fuel-injected engines for the marine market. The company remains Rowe family owned.

Roush Performance is one of many companies that are part of Roush Industries, headed by Jack Roush, a major automotive supplier and racing team owner.

Raptor, Roush supercharges Raptor V8, but not for the road, ClassicCars.com Journal

Larry Edsall
Larry Edsall
A former daily newspaper sports editor, Larry Edsall spent a dozen years as an editor at AutoWeek magazine before making the transition to writing for the web and becoming the author of more than 15 automotive books. In addition to being founding editor at ClassicCars.com, Larry has written for The New York Times and The Detroit News and was an adjunct honors professor at the Walter Cronkite School of Journalism and Mass Communication at Arizona State University.


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