2017 GM Marine Vortec 5.7L V-8

The small block V-8 family of marine engines offers proven reliability and durability over a range of horsepower and torque.

• High-flow cylinder head with straighter intake ports and a higher compression ratio delivers impressive horsepower

• Valvetrain features advanced design silent timing chain for added durability and positive inlet valve stem sealsfor reduced oil consumption

• Roller valve lifters for reduced friction and improved performance

• Composite front timing cover for noise reduction and corrosion protection

• Flywheels are offered with front- or rear-mounted ringgears for various starter locations to suit inboard and stern drive applications

• Water pump is effective rotating in either a clockwise or counterclockwise direction

• Cylinder head gaskets have stainless steel core for corrosion resistance

• Offered with electronic throttle body unit only

• Fuel injection reliability improved by using new injector design