Supertech Nissan RB26 Factory Shim Replacement Dia 12.15mm Thickness 3.475mm

With a diameter of 12.15mm and a thickness of 3.475mm, these valve shims from Supertech are made to replace the factory shims in your Nissan RB26 engine. Proper valve clearance is crucial for engine performance and longevity, ensuring that your valves open and close at the right times without impacting other components.

These shims are designed to meet the precise specifications needed for the RB26 engine, allowing for accurate adjustment of your valve lash. When you're rebuilding the top end or performing routine valve adjustments, having shims that fit correctly and maintain the intended clearance is key to getting your engine running smoothly and reliably.