Straub Technologies Valve Spring Shim - 0.015 in Thick - 1.300 in OD - 0.520 in ID - GM LS-Series (Set of 50) 1205006 for the best results drain

for the best results drain or flush the current oil and then fill with Royal Purple(R) Max ATF

Copper wire rings to essentially eliminate head brinelling and bending

Once that's done

Available in various styles and finishes

This factory-style replacement emblem is made of high-quality metal and protective chrome plating

Straub Technologies Valve Spring Shim - 0.015 in Thick - 1.300 in OD - 0.520 in ID - GM LS-Series (Set of 50) 1205006 for the best results drainProduct Description: Valve Spring Shim 0. 015 in Thick 1. 300 in OD 0. 520 in ID Steel GM LS Series Set of 50 With 25 years of experience in the performance industry, Straub Technologies has built relationships with many of the top companies. Our ability to source, design, and sell products to satisfy the performance needs of industry giants and grassroots racers alike has built our reputation as the go to source in the performance industry.