Designed for 88" to 103" CID engines with compression ratios between 9:1 and 10:1. Kit includes camshafts, gearcover gasket, bearings, retaining ring, o-ring, thread lock and instructions. Strongest from 3200-3700 rpm. Made in the USA. Installer must check coil bind, valve to valve clearance and valve to piston clearance.. Requires high lift valve springs.. Camshafts for '06 Dyna and '07-'17 Twin Cam are for use with models with hydraulic tensioner chain drive system.. Camshafts for '00-'06 Twin Cams are use with stock splined drive gears..
