COMP Cams Ultra Pro Magnum Chromoly Roller Rocker Arm - 7/16 in Stud Mount - 1.70 Ratio - Big Block Chevy NT002003 • Bar Mount (#BMS)

• Bar Mount (#BMS)

and data is stored on a removable SD card

Innovate SSI-4 Plus Data Logger

490" max lift at recommended installed height

1989-1991 GMC V2500 Suburban

COMP Cams Ultra Pro Magnum Chromoly Roller Rocker Arm - 7/16 in Stud Mount - 1.70 Ratio - Big Block Chevy NT002003 • Bar Mount (#BMS)The Ultra Pro Magnum Roller Rocker Arms for Big Block Chevy 396 454 applications take stud mount rocker performance, stability and value to a whole new level. These rocker arms feature a 7 16" stud diameter and 1. 7 ratio. The 8650 chromemoly material and arched, web like design deliver increased strength and rigidity while still reducing the moment of inertia and optimizing the dynamic balance. A unique black oxide exterior finish helps prevent