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GM retro-fit LS 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.

LS Trunnion Kit includes:

  • 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

Additional information

Weight 4 lbs
Dimensions 12 × 6 × 4 in

This product can expose you to chemicals, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit