This 124" big bore/stroker Hot Set Up Kit transforms a stock engine into a 124" monster. This kit includes S&S 4-1/8" bore pistons, big bore cylinders finished in wrinkle black powder coat, a dynamically balanced 4-5/8" stroke three piece flywheel assembly complete with S&S heavy duty connecting rods and intergal mainshafts, S&S 640 gear drive Easy Start camshafts, S&S chromoly steel adjustable pushrods, S&S premium tappets,S&S Super Stock 91cc cylinder heads. When installed the kit yeilds a 124" engine with a compression ratio of 11:1. Although the engine is .960" taller than stock, there are no frame clearance problems, and a stock EFI Throttle body will fit because the manifold mounting surfaces of the heads have been specially machined to fit a stock length manifold. No fuel or ignition system is included. However, for the best results, a larger EFI throttle body, performance intake and performance exhaust are recommended. The EFI system must be recalibrated.
Crankcases must be bored to accept the larger 4-1/8" bore cylinders. S&S strongly recommends retrofitting 2003-'15 model crankcases to accept a Timken sprocket shaft bearing EFI engines will require tuning. S&S recommends Dynojet Power Vision flash tuners Not legal for sale or use on CA or EPA pollution controlled motorcycles.
Manufacturer: S&S Cycle
Part #: 900-0569
S&S Hot Set Up Kit, 4-1/8″ Bore, 124″, 4-5/8″ Stroke, w/ 91cc Heads, 640GE, WBlack, 2007 bt w/ Balancer 900-0569
- Brand: S&S Cycle
- Product Code: 900-0569
- Availability: Special Order