- This 124" big bore/stroker Hot Set Up Kit transforms a stock 88" 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
- For the best results, a larger carburetor or EFI throttle body, performance intake and performance exhaust are recommended
- The EFI system must be recalibrated
- Although not mandatory, we recommend adding an oil cooler to bikes ridden in warmer climates
- Made in the U.S.A.
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2001-2006 | Harley-Davidson | Fat Boy EFI FLSTFI | |
| 2001-2006 | Harley-Davidson | Fat Boy FLSTF | |
| 2001-2006 | Harley-Davidson | Heritage Softail Classic EFI FLSTCI | |
| 2001-2006 | Harley-Davidson | Heritage Softail Classic FLSTC | |
| 2006 | Harley-Davidson | Heritage Softail EFI FLSTI | |
| 2006 | Harley-Davidson | Heritage Softail FLST | |
| 2001-2003 | Harley-Davidson | Heritage Springer EFI FLSTSI | |
| 2001-2003 | Harley-Davidson | Heritage Springer FLSTS | |
| 2001-2006 | Harley-Davidson | Night Train EFI FXSTBI | |
| 2001-2006 | Harley-Davidson | Night Train FXSTB | |
| 2005-2006 | Harley-Davidson | Softail Deluxe EFI FLSTNI | |
| 2005-2006 | Harley-Davidson | Softail Deluxe FLSTN | |
| 2001-2006 | Harley-Davidson | Softail Deuce EFI FXSTDI | |
| 2001-2006 | Harley-Davidson | Softail Deuce FXSTD | |
| 2005-2006 | Harley-Davidson | Softail Springer Classic EFI FLSTSCI | |
| 2005-2006 | Harley-Davidson | Softail Springer Classic FLSTSC | |
| 2001-2006 | Harley-Davidson | Softail Springer EFI FXSTSI | |
| 2001-2006 | Harley-Davidson | Softail Springer FXSTS | |
| 2001-2006 | Harley-Davidson | Softail Standard EFI FXSTI | |
| 2001-2006 | Harley-Davidson | Softail Standard FXST | |