Supertech Nissan RB26 Factory Shim Replacement Dia 12.15mm Thickness 3.425mm

Supertech is known for making well-built valvetrain components, and these factory shim replacements for the Nissan RB26 engine are no different. If you're rebuilding the top end of your RB26, getting the valve lash set correctly is crucial for performance and longevity. These shims are designed to replace the factory ones, ensuring you can achieve the precise clearances your engine needs.

This specific shim measures 12.15mm in diameter and has a thickness of 3.425mm. Using the correct size shims allows you to dial in your valve lash, which is important for proper valve seating and timing. Getting this right helps your engine run smoothly and prevents potential damage from incorrect clearances.