Ultra Pro Magnum Roller Rocker Arms – 7/16″ Stud, 1.7:1 Ratio (Co1620-16)

Description

Ultra Pro Magnum Roller Rocker Arms 7/16″ Stud Dia, 1.7 Ratio

Suit Big Block Chevy 396 – 454

CO1620-16

1620-16

Investment cast 8650 chromemoly body and arched, web – like design deliver increased strength and rigidity while reducing moment of inertiaUnique black oxide exterior finish helps prevent corrosion, thus increasing durabilityOptimised retainer and valve spring clearances allow use of most diameter springs, retainers and +.050″ locks without clearance or fitment issuesFeature oversized trunions, precision – sorted needle bearings and hardened roller tips

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