Valve Spring Seat Shims - M8

• Set valve spring open height to match camshaft lifts for optimum valve-train stability and performance
• Includes eight 0.060" thick shims, eight 0.030" thick shims, and eight 0.015" thick shims with 1.200" OD (outside diameter) and 0.570" ID (inside diameter)
• Made in the USA

Manufacturer Part Number: 1218