S&S 117ci Big Bore Kit – Black. Fits Twin Cam 2007-2017

Description

* 117in. Standard Compression – Flat Top Pistons

* Note: Crankcases must be bored to accept the larger 4-1/8in. bore cylinders

* Compression Ratios:

85cc Stock Heads = 10.9:1

89cc S&S Heads = 10.5:1

91cc S&S Heads = 10.3:1

95cc SE Heads = 10.0:1

* This big bore cylinder and piston kit contains S&S 4-1/8in. bore cylinders and forged flat topped pistons, rings, wrist pins, head and base gaskets. The cylinders are machined with the stock bolt pattern and ar