Description

Ultra Pro Magnum Rocker Arm Set w/ 1.52 Ratio for Chevrolet SBC w/ 3/8″ StudULTRA Pro Magnumââ??¢ Roller Rocker Arms. The Ultra Pro Magnumââ??¢ Roller Rocker Arms not only live up to the lofty standards of the original Pro Magnumââ??¢ Rockersbut they also take Stud mount Rocker performancestability and value to a whole new level. The modern archedweb-like design delivers increased strength and rigidity while still reducing the moment of inertia and optimizing the dynamic balance. Applications: Chevrolet Small Block 265-400 c.i.d. V8 3/8″ Studs / 1.52:1 Ratio.&#x0D

&#x0D Investment cast 8650 chromemoly body and archedweblike design deliver increased strength and rigidity while reducing M.O.I. Unique black oxide exterior finish helps prevent corrosionthus increasing durability Increased retainer and valve spring clearances allow use of large diameter springsretainers and +.050″ locks with o clearance or fitment issues Feature Oversized trunnionsprecision-sorted needle bearings and hardened Roller tips withstand valve spring pressures up to 850 lbs. Also Available in A Rocker/Pushrod Kit