Product Description
Michigan Motorsports LS1 Rocker Arms with Upgraded Trunnion Bearings & Billet Stands
Complete kit with professionally installed trunnion upgrade, billet rocker stands, and upgraded hardware.
Michigan Motorsports LS1 rocker arms have been fully disassembled and rebuilt with upgraded trunnion bearings for maximum durability. This kit also includes billet rocker stands and high-strength bolts, making it a premium replacement for factory rockers. Whether your LS engine is stock or a high horsepower build, these rocker arms deliver the reliability and strength needed to handle aggressive heads and camshaft combinations.
Key Benefits
- Professionally assembled: LS rocker arms rebuilt with premium trunnion bearings—ready to install.
- Durability upgrade: Premium 8620 steel trunnions and caged roller bearings eliminate failures from OEM loose needle bearings.
- Added stability: Includes billet rocker mounting stands for improved strength and alignment.
- Performance-ready: Designed for aggressive camshaft/heads combos with long-term street or track reliability.
Fitment
Fits 1997-2013 LS-based 4.8L, 5.3L, 5.7L, and 1999-2006 6.0L engines. Compatible with LS1, LS2, LS6, LR4, L20, LY2, LM7, LC9, LM4, LS4, L33, L59, LH6, LY5, LMG, LMF, LQ4, LQ9.
Will NOT fit: 2007-later 6.0L (L96, LY6, L76, etc.) or 6.2L engines.
Kit Includes
- (16) LS Series Rocker Arms with Roller Bearing Trunnion Upgrade Installed
- (16) High Strength Allen Head Bolts
- (2) Billet Rocker Mounting Stands
Installation Notes
Install rocker arms to cylinder heads using the supplied socket head cap screws. Rotate the trunnion so the flat recessed side faces upward (bolt must seat against this surface). Torque to 22 ft-lbs following OE installation procedure.
