AMC V8- S40046A

Fits:1974 to 1991 290-401 AMC V8 Special Notes: This rocker system features Cage guided needle bearings, 3/4 diameter rocker shafts, 7/16 internal oil adjusters and all the necessary hardware for a complete install. If you changed camshafts or machined the block and heads you may have to change your pushrod length, always check before installing Designed to replace the factory style rocker system, without machine work This rocker system is capable of handling 350lbs. of open pressure before the 5/16 bolt will fail, If you are running an application beyond this, It is recommended you install 7/16 rocker studs and guide plates. And use our S4004-7 AMC rocker setup.