S&S CYCLE 128" Power Package for 114"/117" Oil Cooled M8 — 4.5" stroke, Wrinkle Black – 18-25 Softail, 19-25 Touring, 20-25 Trike, 22-23 CVO

🔧 Made in the USA. This bolt-on big-bore power package raises M8 performance without case machining, delivering robust midrange power and durability.

• Big-bore bolt-on kit increases displacement using larger bore and longer stroke while remaining fully bolt-on and serviceable.
• Includes an oil pump and cam plate with serviceable passage plugs, independent scavenge sections, debris screens and a camchest magnet to protect the pump.
• Chrome pushrods with chrome tubes, premium tappets and hard-anodized tappet cuffs improve valvetrain stability at high rpm.
• High-lift cams and compatible high-performance valve springs are included for aggressive big-bore applications.
• All necessary gaskets, bearings and hardware for bolt-on installation are included; not recommended for Tri-Glide or other three-wheel conversions due to lugging characteristics.

🛠️ Adjustable pressure relief and user-serviceable features simplify routine maintenance for experienced technicians.