COMP Cams Rocker Arms348/409 Chevy 1.7 1629-8 Heavy Metal Off-Road Constructed from 1/4" (6 mm)

Constructed from 1/4" (6 mm) laser-cut aluminum for durability and reduced weight

This check valve disc also maintains added control at all engine speeds and loads

XFE 2011 - 2013 GMC Sierra 1500 XFE

Year Make Model Submodel 2018 Ford Mustang EcoBoost

Compatible with MAXTRAX® Mini and RotoPax® solutions

COMP Cams Rocker Arms348/409 Chevy 1.7 1629-8 Heavy Metal Off-Road Constructed from 1/4" (6 mm)COMP Cams Rocker Arms 1629 8 The Ultra Pro Magnum Roller Rocker Arms for Chevy V8 348 409 applications not only live up to the lofty standards of the original Pro Magnums, but they also take stud mount rocker performance, stability and value to a whole new level. These rocker arms feature a 3 8" 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