Cylinders are constructed from premium aluminum castings with cast-in iron liners Kits include cylinders, pistons, rings and gaskets (head, base and exhaust) Made in the U.S.A. This project requires a skilled technician. It is the responsibility of the person assembling the parts to check all clearances and assembly specifications. Requires crankcase boring for installation.. CYLINDERS+PSTNS 96"V2 BLK