S&S kit for non-counterbalanced Twin Cam engines: converts to 124 cu in while retaining the stock crankcases. Includes 91cc heads, 4.125" cylinders, forged pistons, a 4.625" crankshaft, and 640 Easy Start cams. EFI must be recalibrated; fuel system and ignition components not included. +0.96" with no frame interference; compatible with the stock throttle body.
Compatible with non-counterbalanced Twin Cam models.
Converts a stock engine to 124" while retaining the stock crankcases.
Includes S&S Super Stock® 91 cc cylinder heads, 4.125" cylinders, forged big-bore flattop pistons, an S&S 4.625" crankshaft, S&S 640 Easy Start gear-drive cams, premium S&S lifters, S&S adjustable pushrods, roller rockers, plus all necessary installation hardware, gaskets, and instructions.
Made in the USA.
EFI system recalibration required.
Fuel and ignition systems not included.
All clearances and assembly specifications must be verified.
Although the engine is 0.960" taller than stock, there are no frame clearance issues, and a stock EFI throttle body fits; the intake manifold mounting surfaces on the heads have been machined for a standard-length manifold.
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New
124" Hot Set Up® Engine Performance Kit
S&S kit for non-counterbalanced Twin Cam engines: converts to 124 cu in while retaining the stock crankcases. Includes 91cc heads, 4.125" cylinders, forged pistons, a 4.625" crankshaft, and 640 Easy Start cams. EFI must be recalibrated; fuel system and ignition components not included. +0.96" with no frame interference; compatible with the stock throttle body.
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S&S kit for non-counterbalanced Twin Cam engines: converts to 124 cu in while retaining the stock crankcases. Includes 91cc heads, 4.125" cylinders, forged pistons, a 4.625" crankshaft, and 640 Easy Start cams. EFI must be recalibrated; fuel system and ignition components not included. +0.96" with no frame interference; compatible with the stock throttle body.