Comp Cams LS1 Trunnion Upgrade Kit


COMP Cams GM LS Series retrofit trunnion kits are designed to convert stock LS Series rocker arms into captured roller trunnions for high-rpm race applications. They include rocker arm trunnions, bearings, and retaining rings for a complete installation. Keep your valvetrain reliable throughout the entire rpm range with one of these GM LS rocker arm bearing upgrade kits.

Kits include:

  • 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 
  • 2 washers for pressing trunnions


  • Roller Fulcrum Included: Yes
  • Rocker Arm Trunnion Upgrade Kit Style: Needle bearing
  • Pedestal Shim Kit Included: No
  • Hold-Down Bolts Included: Yes
  • Rocker Arms Included: No
  • Quantity: Sold as a set of 16.
  • Notes: For use with stock rocker arms.