Shims, Spring / Booster, HT Steel, 1.247" X 0.518" X 0.030" (Pack of 8)

DescriptionShims, Spring / Booster, HT Steel, 1.247″ X 0.518″ X 0.030″ (Pack of 8)Setting the correct installed valve spring height and pressure is critical , the proper operation of the valvetrain. KPMI® offers a large selection of valve spring shims to allow the builder to compensate , changes that may have occurred due to machining or custom parts usage.