Racing Power Company (R3070): LS1 Rocker Arms with Trunion Upgrade

Designed to handle higher spring pressures and engine RPMs over stock, these LS1 rocker arms from Racing Power Company are forged from quality steel alloy and include caged roller bearings and 8620 steel trunions for superior durability and performance.

The R3070 LS1 rocker arms meet or exceed OE specifications and include one set of 16 rocker arms and new mounting bolts. This Racing Power Company kit is a 100% drop-in design for a hassle-free installation: just rotate the trunion with the flat recess facing up, then tighten bolts to 22 ft-lb following the factory procedure.

Note: Legal for off-road use and on non–pollution controlled vehicles (1965+); however, not tested or approved by CARB for highway vehicles in California.


  • For LS1/LS2/LS6
  • Also fits LR4/LM7/L59/LM4/L33 Vortec 4.8./5.3/5.7/6.0
  • Straight intake rocker with 1.7 rocker ratio
  • 8620 steel-alloy trunion
  • 100% drop-in design
  • Fully caged roller bearings
Racing Power Company LS1 Rocker Arms R3070

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Though this is not a paid review, this content has been produced by The AAM Group in support of manufacturers with whom it has a business relationship.

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