🔧 Upgrade your engine with a complete bolt-on big bore package engineered for performance and serviceability. 🔥
This kit delivers precision-machined billet components, forged pistons, and high-capacity oiling solutions designed for demanding use. Features include:
- Big bore kit expands displacement with a bolt-on design
- No case machining required for installation
- Forged pistons with an 11.1 compression ratio
- Oil pump and cam plate with independent scavenge sections
- Debris screens and a magnet in the cam chest to protect the oil pump
- Increased flow capacity on feed and scavenge sides
- Adjustable pressure relief valve serviceable with the unit installed
- Quickee pushrods and S&S precision tappets with hard-anodized tappet cuffs
- S&S 550 cam designed for big bore applications
- High-performance conical single wire valve springs compatible with high-lift cams
- Precision-machined from billet aluminum with highlighted fins and durable finishes
- Passage plugs removable for servicing
- Stronger billet construction improves tappet stability at high lift and rpm
- Not recommended for Tri-Glide or other three-wheel models due to lugging characteristics
Designed and manufactured with attention to serviceability and durability, this package is a comprehensive solution for builders seeking reliable power increases while maintaining easy maintenance access.
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