These Wiseco valve shims are designed to get you the exact clearance you need for your valves. They are precision-ground to exact tolerances, are manufactured from optimum materials, and are heat-treated for long life. Wiseco valve shims are designed as a drop-in application, require no piston or head modifications, and in most cases, will work with stock springs and valvetrain components.
- Shim kits are through-hardened and precision ground to exact sizes
- Refill kits are by individual size, 5 shims per size







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