S&S, 96" TO 106" BIG BORE CYLINDER & PISTON KIT. SILVER

Silver powder-coated cylinders. No need to bore out the cases. With a 3.927" bore, S&S feels this is the largest bore possible that can be safely used with stock bore crankcase spigots. With a set of S&S .585 cams, an S&S teardrop air cleaner, and S&S mufflers, the 106" S&S test bike showed a very noticeable jump from 60 to 91 horsepower. The forged pistons require no flywheel rebalancing, and the valve pockets are enlarged to accommodate oversize valves and higher-lift cams. Fits stock 4-3/8" stroke 96" Big Twin models and increases capacity to 106". 10:1 CR with stock 89cc cylinder heads and 10.7:1 CR with S&S 79cc heads. Note: S&S does not recommend boring OEM cylinders to this size because of the possible loss of structural integrity. Only one piston oversize (917501) is available for this kit.

Fits: > 06-17 96" Dyna; 07-17 96" Softail; 07-16 96" Touring