The MR103 cam kit is a bolt-in performance camshaft designed for 103" engines. It delivers more power across the rpm range, with strongest gains from 2,500–5,500 rpm. Made in the USA. 🔧🇺🇸
- Bolt-in camshaft for 103" engines: compatible with stock 8.7:1 up to 10.5:1 compression ratios.
- Works with stock, un-ported heads and offers excellent results with S&S CNC ported heads.
- Delivers increased power across the rpm band for improved overall performance.
- Installer must check coil bind, valve-to-valve clearance and valve-to-piston clearance before final assembly.
- Professional installation required: a hydraulic press and other professional-level tools are necessary.
- S&S recommends using adjustable pushrod/covers and replacing camshaft bearings and gaskets when installing new camshafts.
Proper clearance checks and professional installation ensure reliable operation and optimal power delivery. Consult a qualified technician with any questions.