COMP Cams Rocker Arm GM LS1 1.8 3/8 Ultra

This Ultra Pro Magnum rocker is made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.8 ratio, this rocker fits LS1/2/6 with a 3/8" diameter stud.

For LS1/LS2/LS6/4.8L, 5.3L, and Pre '07 6.0L Truck Engines - Cathedral Port Head LS ApplicationsSingle Stud Mount Rocker - Includes Poly Lock - Requires 3/8" Studs &