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After you place your order on this site, we will contact you to confirm your order details prior to payment being made. All orders will be processed and fulfilled by one of our authorised dealers. Rollies Speed Shop Distribution is a wholesale business and does not sell directly to the general public. For more info see the Purchasing Information page.
Features & Benefits:-
* Fits Softail 2007-2017 with Twin Cam B Engine.
* This 124ci big bore/stroker Hot Set Up Kit transforms a stock engine into a 124ci monster.
* Includes S&S 4-1/8in. bore pistons.
* Includes big bore cylinders finished in wrinkle black powder coat.
* Includes a dynamically balanced 4-5/8in. stroke three piece flywheel assembly complete with S&S heavy duty connecting rods & intergal mainshafts.
* Includes S&S 640 gear drive Easy Start ca mshafts.
* Includes S&S chromoly steel adjustable pushrods.
* Includes S&S premium tappets
* Includes S&S Super Stock 91cc cylinder heads.
* When installed the kit yields a 124ci engine with a compression ratio of 10.8:1
* Although the engine is .960in. taller than stock, there are no frame clearance problems.
* 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.< /P>
* 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.
* Fits Softail Only.
* Requires the following items to complete the installation:-
1. Throttle Body, Manifold, Flanges & Seal Kit # HPI-58D6-18
2. Maximus Tuner # TR4-002-002 or similar.
3. Crankcase Machining, Timken Bearing # SS31-4013, Replacement Timken Sleeve # JM-956 & Complete Timken Bearing Conversion Tool # JM-959 if required.
4. Stock crankcases require machining to accept 4-1/8in. cylinders.
Proudly Made in the USA by S&S Cycle !
MFR PART No: 900-0569
ROLLIES PART No: SS900-0569