Valve spring platform shims designed to be used with KAD Race Valve Springs. The cup design neatly locates the valve spring while providing a hardened spring platform.
As used on all KAD race cylinder heads.
Will require cylinder head platforms machining to 1.225" OD.
OD 31.0mm/1.220" x ID 15.2mm/0.598".
Made from high-quality steel and heat treated, these will not break-up or wear out.
Sold as a set of 8.