HP+ One Piece Pushrods - High Performance Push Rods for Engines | Perfect for Racing, Hot Rods & Engine Upgrades

Feuling highly recommends using one-piece pushrods instead of adjustable pushrods to maintain maximum cam/valve lift and reduce valvetrain harmonics and associated hydraulic lifter issues. Fixed length, 4130 chromoly one-piece pushrods with swedged formed ends. Heavy-duty 7/16" diameter tube with a wall thickness of 0.165" Heat-treated with a black oxide finish. Stock replacement lengths. Designed to work with factory base circle camshaft dimensions. Will work with all stock, Screamin' Eagle and Feuling camshafts. Made in the U.S.A. NOTE: Due to the unstable nature of this 4 valve engine design with 1 rocker arm activating 2 valve springs, it is highly recommended to run one piece pushrods over quick install adjustable rods. One piece pushrods maintain maximum cam/valve lift and reduce valvetrain harmonics and associated hydraulic lifter issues