Description
Valve Spring Seat Shims – – Big Twin / Twin Cam / XL / Buell
- Set valve spring open height to match camshaft lifts for optimum valve-train stability and performance
- 12-Pack includes four 0.060″ thick shims, and four 0.015″ thick shims with 1.500″ OD (outer diameter) and 0.645″ ID (inside diameter)
- Made in the USA



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