This 4-1/8" bore cylinder and piston kit replaces the cylinders and pistons on S&S V111 engines for 1984-'99 big twins. The kit contains S&S 4-1/8" bore cylinders and forged pistons, rings, wrist pins, head and base gaskets. Pistons are flat topped design intended for use with S&S Super Stock cylinder heads. The cylinders are machined with the S&S bolt pattern and are intended for use in S&S crankcases used in S&S V111 engines. Designed for 4-1/8" stroke flywheels, resulting in 111" displacement. Cylinder finish is a durable silver powder coat. For best performance, appropriate camshafts, performance air cleaner, performance exhaust and fuel system tuning are required.
EFI engines will require tuning.
Not legal for sale or use on CA or EPA pollution controlled motorcycles.