Feuling's adjustable pushrods are 3/8 4130 chrome moly tube and use a minimal adjustment parameter eliminating flex and loss of valve train-stability problems associated with most adjustable pushrods. Individual length intake & exhaust pushrods keep the adjustment extension to a minimum. These pushrods are designed to exceed the needs of performance engines using larger lift camshafts and high spring pressures, while maintaining proper and critical oil flow to top end valve gear.
HP+ pushrods have 24 threads per inch adjustment, super strength single jam nut lock system, wall thickness 0.120
RACE SERIES have 24 threads per inch with 0.145 wall thickness - recommended when extreme valve-spring pressures are used.
Designed for use with hydraulic or solid lifters and street or race engines
