Product Description
Michigan Motorsports LS1 Rocker Arms with Bronze Bushing Trunnions Professionally Installed
Includes Billet Rocker Stands
Fits 1997-2013 LS Based 4.8L 5.3L 5.7L and 1999-2006 6.0L Engines
LS1 LS6 LS2 LR4 L20 LY2 LM7 LC9 LM4 LS4 L33 L59 LH6 LY5 LMG LMF LQ4 LQ9
Will not fit 2007-later models of 6.0L. Will not fit 6.2L
16 New LS Rocker Arms with Bronze Bushing Style Trunnions Professionally Installed
New upgraded strength bolts and billet support stands are included for installation.
Whether you have a stock LS motor or a highly modified LS motor, replacing your rockers with upgraded Trunnion Kit is highly recommended. The stock bearings have a tenancy to fail. These rocker arms are a must have for any aggressive heads and cam combo.
LS Rocker Arms feature our BUSHING TRUNNION KITS. The bushing bearing operates smoother and can operate at a higher RPM than even the caged bearing style upgrade. The bushing design provides superior lubrication to the trunnion while also providing maximum load capability. Our 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.
This kit includes:
16 LS Series Rocker Arms with Bronze Bushing Trunnion Upgrade Installed
16 High Strength Allen head bolts for LS Rockers
2 Billet Rocker Mounting Stands
Install the upgraded rocker arms to the cylinder heads using the new socket head cap screws supplied. Be sure to rotate the trunnion so that the flat recess 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.
