Engines and Components Pistons and Piston Rings

S&S Cycle

S&S Cycle 84-99 BT 96in 3-5/8in Big Bore Cylinder & Piston Kit For S&S SH96 Engines - Wrinkle Black

$1,437.95

SKU: S0GE 91-7707

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INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: 91-7707

This 3-5/8" big bore kit may be used to replace the cylinders and pistons of an S&S V96 engine or a stock HD (R) Evolution (R) big twin engine that has been upgraded with an S&S 96" Hot Set Up Kit (R) with S&S (R) Super Stock (R) cylinder heads. This kit may also be used to upgrade an engine with an S&S 89" stock bore stroker kit to 96". Stock crankcases must be bored to accomodate the 3-5/8" bore cylinders, but the 4-5/8" stroker flywheel assembly does not need to be rebalanced. The kit includes S&S 3-5/8" bore cylinders, 3-5/8" bore forged domed Super Stock (R) pistons with rings and wristpins, head gaskets, base gaskets, exhcaust gaskets, and instructions. Compression is 10.1:1. The cylinders are nearly stock length, so stock length pushrods, and manifold may be used. Stock cases will need to be bored out to 3 5/8".

MIA's Description

This 3-5/8" big bore kit replaces cylinders and pistons for S&S V96 engines or stock HD® Evolution® big twin engines upgraded with an S&S 96" Hot Set Up Kit® with S&S® Super Stock® cylinder heads. It can also upgrade an engine with an S&S 89" stock bore stroker kit to 96". Requires boring stock crankcases to 3-5/8" bore. The 4-5/8" stroker flywheel assembly does not need rebalancing.

Fitment

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Specifications

BrandS&S Cycle
Part NumberS0GE 91-7707

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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