Product Description

Michigan Motorsports Billet Rocker Stands for Rectangle Port LS Heads

Fits 2007–Later Rectangle Port 6.0L & 6.2L LS Engines – Casting #821, #823, #5364

The Michigan Motorsports Billet Rocker Stands are engineered to deliver exceptional valvetrain stability and precision for high-performance LS builds.

CNC machined in the USA from premium 6061 billet aluminum, these rocker stands offer improved rigidity, reduced deflection, and more consistent rocker saddle heights compared to factory cast aluminum stands. This ensures optimal valve train geometry and reliable performance, especially in high-RPM and aggressive camshaft setups.

Designed as a direct replacement for GM #12600936, these stands fit all 2007 and newer rectangle-port LS cylinder heads, including popular castings 821, 823, and 5364. Whether you’re rebuilding or upgrading your LS engine, these billet stands provide a perfect balance of strength, precision, and performance.

Key Features:

Precision CNC machined in the USA from 6061 billet aluminum
Increased rigidity and reduced flex for superior valvetrain stability
Provides consistent rocker saddle heights for accurate geometry
Direct replacement for OEM GM #12600936 rocker stands
Ideal for performance builds, high-RPM applications, and aggressive cam setups
Designed for 2007-later rectangle-port LS heads (821, 823, 5364 castings)
Includes two (2) billet rocker stands per kit

Michigan Motorsports Billet LS3 Rectangle Port Rocker Arm Stands (Pair) Replaces 12600936 for LS3 L99 L76 L77 L92 L96 L94 LY6 L9H LSA 6.0L 6.2L