Supertech Performance RB26-SHIM-2.85 Cam Follower Shim for Nissan RB26

The Supertech Performance RB26-SHIM-2.85 is a precision-engineered cam follower shim designed as a factory replacement for Nissan RB26DETT engines. This valve shim is an essential component for proper valve train geometry and performance engine tuning.

Key Specifications:

• Diameter: 12.15mm
• Thickness: 2.85mm
• Direct factory shim replacement
• Improved durability over OEM components

Valve shims are critical for maintaining proper valve spring preload and ensuring all cylinders receive and exhaust equal amounts of air and fuel mixture. By placing a valve shim in any out-of-tolerance valve spring location, engine builders can fine-tune valve train geometry for optimal performance. These precision shims are considered invaluable tools when building or rebuilding high-performance RB26 engines, allowing for precise adjustment of valve lash and spring seat heights.