The 635 H.O. Chain Drive Camshaft Kit is designed for modified engines with 106" or greater displacement and compression ratios between 10.0:1 and 11.0:1. 🔧
It delivers best power from 3000–600 rpm and works with stock, unported heads; S&S CNC ported heads are recommended for optimal flow.
This is not a bolt-in camshaft kit; the installer must check coil bind, valve-to-valve clearance and valve-to-piston clearance before final assembly. ⚠️
The kit includes camshafts, bearings, gearcover gasket, retaining ring, o-ring, thread lock and instructions, and is made in the USA. 🇺🇸
Cams for '06 Dyna and '07–'17 Twin Cam are intended for use with models equipped with a hydraulic tensioner chain drive system.