S&S CYCLE 132" Power Package for M8 — 4.5" stroke, 4.32" bore, 11.0:1 compression – 18-23 Softail, 17-19, 21-23 Touring, 22 CVO, 17-23 Trike

Upgrade your M8 with the 132" Power Package — a big-bore, bolt-in kit that expands 114"/117" engines with the 4.5" stroke M8 to a full 132" without case machining. 🔧

• 4.32" bore cylinders with 11.0:1 compression ratio forged pistons
• S&S oil pump and cam plate with blue anodized finish
• Removable passage plugs for easier servicing
• Independent scavenge sections for the flywheel cavity and cam chest
• Debris screen in both scavenge pickups and a magnet in the cam chest to protect the oil pump
• Increased oil flow capacity on both oil feed and scavenge sides, with an adjustable pressure relief valve that can be tuned installed in-engine
• Quickee pushrods, S&S premium tappets, and hard-anodized black coated billet aluminum tappet cuffs
• S&S 550 cams designed for big-bore applications and S&S valve springs supporting up to 0.605" lift
• High-performance conical single wire spring design
• All necessary gaskets, bearings and hardware for bolt-on installation included
• Made in the USA
• Not for 121" CVO