Adjustable Pushrods 4065

FEULING - HP+® ADJUSTABLE PUSHRODS Can be used with hydraulic or solid lifters and street or race engines; Race Series recommended when extreme spring pressures are used. Designed to exceed performance engine needs using larger lift cams and high spring pressures while maintaining proper and critical oil flow to top-end valve gear. Made from CNC-machined 7/16 tapered 4130 chromoly steel tube; 32 thread per inch adjustment. Individual length intake and exhaust pushrods keep the adjustment extension to a minimum. Minimal adjustment parameter eliminates flex and loss of valve-train stability problems Double jam nut lock system. Made in the U.S.A. Maximizes valve-train stability to increase engine rpm, horsepower and torque output. Fueling pushrods can be used with factory pushrod tubes. Maintains maximum valve lift; increases stiffness and column rigidity. HP+ pushrod wall thickness of 0.095. NOTE: Require removal of rocker covers and rocker arm supports.