S&S Cycle® – Standard Compression Big Bore Kit

Standard Compression Big Bore Kit by S&S Cycle®. This big bore cylinder and piston kit can be used as replacement for the cylinders and pistons for an S&S 124″ Hot Set Up Kit, a T124 T2 engine or as the basis for a new engine build. Kit contains S&S 4-1/8″ bore cylinders and forged flat dome pistons, rings, wrist pins, head and base gaskets. The cylinders are machined with the stock bolt pattern and are intended for use in stock crankcases of 2007-’16 big twin engines. This kit must be used with 4-5/8″ flywheels resulting in 124′ displacement. Cylinder finish is a durable wrinkle black powder coat. This cylinder kit may be used with stock or S&S cylinder heads with stock bolt pattern. For best performance, appropriate camshafts, performance air cleaner, performance exhaust and fuel system tuning are required. Crankcases must be bored to accept the larger 4-1/8″ bore cylinders. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials using up-to-date equipment, it ensures everlasting reliability and enduring value. This product is distinguished by total quality assurance, unsurpassed by anybody else.

Founded in 1958, S&S Cycle® has been providing high performance motorcycle parts for Harley-Davidson® and other v-twin motorcycles for over 55 years. Starting with a simple offering of light weight pushrod kits, the S&S motorcycle performance product line has grown to include exhaust systems, camshafts, carburetors, fuel injection systems, stroker kits, big bore kits, cylinder heads, service replacement parts and complete motorcycle engines for both vintage and modern v-twins.

Notes:

• Stock crankcases must be bored to accept the larger 4-1/8″ bore cylinders. EFI engines will require tuning. S&S recommends Dynojet® Power Vision® flash tuners for 2001-’16 engines with Delphi® EFI systems
• This product is NOT legal for installation on vehicles required to meet CARB standards and/or registered in California and other states following CARB standards, including NY and ME