Engine

Made in the U.S.A. Direct replacements for OEM covers All hardware and gaskets included Machined Performance Machine logo Scallop design. COVER ROCKR BX SCLP M8 CC

Cast from 4340 heat-treated chromoly steel Reduce friction in the valve train, providing more horsepower and less heat in the top end Include 660 bronze bushing fit to .0007" - .0012" for the best wear resistance and oil control Roller tip made from...

Machined from 2618-T6 high tensile forged aluminum Dome/ dish features smooth flowing radii; require no deburring or preparation JE designs are specifically engineered for extreme applications including professional competition Pins, pin fitment, lock...

Machined from 2618-T6 high tensile forged aluminum Dome/ dish features smooth flowing radii; require no deburring or preparation JE designs are specifically engineered for extreme applications including professional competition Pins, pin fitment, lock...

Machined from 2618-T6 high tensile forged aluminum Dome/ dish features smooth flowing radii; require no deburring or preparation JE designs are specifically engineered for extreme applications including professional competition Pins, pin fitment, lock...

Machined from 2618-T6 high tensile forged aluminum Dome/ dish features smooth flowing radii; require no deburring or preparation JE designs are specifically engineered for extreme applications including professional competition Pins, pin fitment, lock...

Kit includes aluminum cylinder with nickel-carbide coating designed with larger water jackets Specially designed, high performance, hard anodized power valves (cannot use OEM) Forged piston with molybdenum coating Does not include cylinder head....

Aluminum cylinder with nickel carbide coating and aluminum cylinder head with removeable bronze dome Specially designed, high performance, hard anodized power valves (cannot use OEM) Kit also includes Athena top end gasket set with required seals and...

Aluminum cylinder with nickel carbide coating and aluminum cylinder head with removeable bronze dome Specially designed, high performance, hard anodized power valves (cannot use OEM) Kit also includes Athena top end gasket set with required seals and...