- Set your valve spring open height to match your camshaft lifts for optimum valve-train stability and performance.
- Quality machined valve spring seat shims in 3 thicknesses, 0.060, 0.030, 0.015 with outside 1.200 Diameter and inner 0.570 diameter.
- Quantity 8 of each thickness
- FITS: M8 17-22
- Made in the U.S.A.