"124 inch Hot Set-Up Kit

The S&S Hot Setup kit for Twin Cams allows a Twin Cam owner to convert a stock engine to 124 inch using the stock crankcases

Includes S&S 4-1/8 inch bore pistons, big bore cylinders finished in wrinkle black powder coat, a dynamically balanced 4-5/8 inch stroke three piece flywheel assembly complete with S&S heavy duty connecting rods and integral mainshafts, S&S 640 gear drive Easy Start camshafts, S&S chromoly steel adjustable pushrods, S&S premium tappets, and S&S Super Stock 91cc cylinder heads

When installed the kit yields a 124 inch engine with a compression ratio of 11:1

Fuel system is not included

Available in black powder-coat finish

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 recommended for trike models

Product Name: Performance Kit
Compression Ratio: 10,8:1
Style: Big Bore
Type: Engine
Model: Hot Setup
Cam Drive Type: Gear
Stroke Length: 4-5/8 inch
Units: Kit
Displacement: 91 inch
Bore Size: 4,125 inch
"