Product Description
LS3 Style Rocker Arms with Bronze Bushings Professionally Installed - Michigan Motorsports Billet Stands Included
These LS3 Intake Rocker Arms feature offset fulcrum for use on LS3 L99 L76 L92 L96 LY6 LSA "rectangle/square port" cylinder heads.
Rocker Arms come with upgraded Trunnions and Bearings professionally installed
Include new LS3 specific bolts and Upgraded Michigan Motorsports Billet Stands for installation.
Whether you have a stock or highly modified LS engine, replacing your rockers with a upgraded trunnion setup is highly recommended. The stock bearings have a tenancy to fail, sending loose needle bearings through the engine. These rocker arms are a must have for any aggressive heads and cam combo. We utilize LS3 rocker arms and new LS rocker arm bushing style trunnion kit that replaces the cageless, loose OEM needle bearings and powdered metal trunnion with a premium trunnion Kit.
The bushing design provides superior lubrication to the trunnion while also providing maximum load capability. This innovative design prevents premature failures caused by the weak O.E. or replacement needle bearings, eliminating the possibility of debris from a bearing failure that can cause severe engine damage. Our special C932 bushing material is bathed in oil via grooves at 2 different locations on the trunnion. These channels constantly feed oil to the bushing surface ensuring proper lubrication. The greater surface of our bushed trunnion will support 300 times more load than a needle bearing trunnion. Our bushing gets more lubrication and has less load applied to it than the bushing in the small end of a connecting rod, giving it long service life.
Michigan Motorsports' billet LS rocker stands are an excellent upgrade for your valvetrain. CNC Machined in the USA from 6061 Billet Aluminum, these stands offer improved rigidity and reduced flex compared to the OEM stands, as well as more consistent rocker saddle heights. The OEM GM stands can vary as much as .015", making it difficult to set consistent lifter preload heights especially when dealing with short travel aftermarket lifters. The rocker heights on these billet stands are true within .001" over their full length. Replaces GM # 12600936.
This kit includes:
16 New LS3 Series Rocker Arms with Upgraded bushing style trunnion kit installed
16 Upgraded bolts for LS3 Rockers
2 Michigan Motorsports Billet Rocker Arm Stands
Installation:
Be sure to rotate the trunnion so that the flat recessed side of the trunnion's center hole faces upward (the socket head cap screw must seat against this recessed flat side of the hole). Tighten the cap screw to a value of 22 ft-lbs, following the OE installation procedure.
