Michigan Motorsports LS1 Rocker Arm with Upgraded Trunion

Replaces 12681275 10214664

 Fits all these applications: LS1/LS2/LS6/ LR4 Vortec 5300 LM7 L59 LR4 L33 LQ4 LQ9 – 4.8/5.3/5.7/6.0/ Engines

 Whether you have a stock LS motor or a highly modified LS motor, replacing your rockers with a true roller bearing setup 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 as well as being a great replacement for the OEM rockers on stock engines. We utilize LS rocker arms and install new LS1 rocker arm retro-fit trunnion kit that replaces the cageless, loose OEM needle bearings and powdered metal trunion with a premium 8620 steel alloy trunion and caged roller bearings for added durability. The caged roller bearings that greatly reduce the possibility of the bearing failure experienced with stock LS1 needle bearings, which can send loose needles throughout the engine upon failure.

Fits: LS1 LS2 LS3 LS6 L99 LSA L92 L9H L94 LS2 L76 L77 LY6 L96 LFA LZ1 LY5 LMG LMF LH6 LC9 LY2 L20 L33 LQ4 LQ9 LR4 LM7 L59 LH8 LH9