124" HOT SETUP KIT FOR USE WITH STOCK OR CYLINDER HEADS

124" Hot Set Up® Engine Performance Kit

The S&S Hot Set Up® kit for Twin Cams allows a Twin Cam owner to convert a stock engine to 124" using the stock crankcases

Include S&S heads 91cc, 4.125” bore cylinders and forged 10.8:1 flattop pistons, S&S 4.625” stroke flywheel assembly, S&S .640” lift gear drive Easy Start cams, tappets, S&S adjustable pushrods, roller rocker arms, and all hardware, gaskets and instructions

Fuel system is not included

Made in the U.S.A.

This project requires crankcase modifications. It is the responsibility of the person assembling the parts to check all clearances and assembly specifications

Not for use on twin cooled motors.
Not recommended for compression ratios higher than 10:1 for Tri Glide® or other three wheel models (including conversions) due to extra loads caused by the lugging nature of these bikes. Detonation and subsequent engine damage may result.