Ls Rocker Arms W/ Trunion Kit Installed 4.8L 5.3L 5.7L 6.0L Rockers Trunnion Air Pump This lower oil volume reduces

This lower oil volume reduces the chance for seal leakage

crankcase ventilation without function

compatible for YAMAHA 4WV-81800-00-00

Engineered for superior durability

Ls Rocker Arms W/ Trunion Kit Installed 4.8L 5.3L 5.7L 6.0L Rockers Trunnion Air Pump This lower oil volume reduces100% brand new,Never Been Used High Quality Professional installation in highly recommended (No instruction included) Package Includes: 16 LS Series Rocker Arms 16 rocker arm trunnions LS type retrofit 32 rocker arm bearings LS type retrofit 32 rocker arm retaining rings LS type retrofit 16 bolts for LS trunnion kit As the picture shown Installation Notes: Install the upgraded rocker arms to the cylinder heads using the new socket head cap screws