Product Description
Michigan Motorsports LS3 Rocker Arms Conversion Kit
Designed for LS3, L76, L99, L92 & LS9 Cylinder Head Conversions
The Michigan Motorsports OEM LS3 Rocker Arms Conversion Kit is engineered for builders upgrading to LS3-style rectangle port cylinder heads. These heads require 1.7 ratio intake rocker arms with an offset design and dedicated rocker stands for proper valvetrain geometry. This kit supplies everything needed for the intake side while allowing reuse of factory LS1-style exhaust rocker arms, making it a cost-effective and reliable solution for LS head conversions and performance upgrades. OEM components ensure long-term durability and proper fitment.
Key Features & Benefits
- Complete Intake-Side Conversion Kit: Includes eight OEM LS3 intake rocker arms, two LS3-specific rocker stands, and sixteen new rocker arm bolts.
- Correct 1.7 Ratio Offset Geometry: Designed specifically for LS3-style heads that require offset intake rocker arms to maintain proper valvetrain alignment.
- Reuse LS1 Exhaust Rockers: Allows continued use of factory LS1-style exhaust rocker arms to complete the conversion without unnecessary extra parts.
- OEM-Quality GM Components: Built using genuine OEM rocker arms and stands for factory-level reliability and long service life.
- Ideal for Head Swaps & Performance Builds: Perfect solution when converting to LS3, L76, L99, L92, or LS9 cylinder heads on LS-based engines.
Key Fitments
- LS3: Rectangle port cylinder heads requiring offset intake rockers
- L76: LS3-style rectangle port cylinder heads
- L99: LS3-style rectangle port cylinder heads
- L92: LS3-style rectangle port cylinder heads
- LS9: LS3-style rectangle port cylinder heads
