Building your M8 for big power? S&S has the parts you need to bulletproof the top end of your valvetrain in one convenient kit! S&S performance parts are direct replacement...

These S&S® Super Stock® high performance cylinder heads are designed for 2006-'16 engines with stock crankcase. They work well with engines of stock displacement , but are ideal for somewhat...

Fleece Performance 11-16 GM Duramax 2500-3500 LML Remanufactured Freedom Cylinder Head (Passenger)

Fleece Performance 11-16 GM Duramax 2500-3500 LML Remanufactured Freedom Cylinder Head (Driver)

Fleece Performance 06-10 GM Duramax 2500-3500 LBZ/LMM Remanufactured Freedom Cyl Head (Passenger)

Fleece Performance 06-10 GM Duramax 2500-3500 LBZ/LMM Remanufactured Freedom Cylinder Head (Driver)

Fleece Performance 04.5-05 GM Duramax 2500-3500 LLY Remanufactured Freedom Cylinder Head (Passenger)

Fleece Performance 04.5-05 GM Duramax 2500-3500 LLY Remanufactured Freedom Cylinder Head (Driver)

Fleece Performance 01-04 GM Duramax LB7 Freedom Cylinder Head w/Cupless Injector Bore (Pssgr Side)

Fleece Performance 01-04 GM Duramax LB7 Freedom Cylinder Head w/Cupless Injector Bore (Driver Side)

Kits include aluminum cylinder with galvanic coating design with forged piston with molybdenum coating.