The Story
Ultra Pro Magnum shaft mount rocker arms Chrysler 383-440 BB
1.5 ratio, up to 850 lbs of open spring pressure
Investment cast 8650 chromemoly, black oxide exterior
Optimized retainer and valve spring clearances allow for use of most diameter springs, retainers and +.050" locks without clearance or fitment issues
Oversized trunions, precision sorted needle bearings and hardened roller tips
Description
Ultra Pro Magnum shaft mount rocker arms Chrysler 383-440 BB
1.5 ratio, up to 850 lbs of open spring pressure
Investment cast 8650 chromemoly, black oxide exterior
Optimized retainer and valve spring clearances allow for use of most diameter springs, retainers and +.050" locks without clearance or fitment issues
Oversized trunions, precision sorted needle bearings and hardened roller tips
