Comp Cams 1.300" X .520" ID SPRING SEAT FOR GM LS1 Superwide-Mirrors Direct bolt-in fitment eliminates guesswork

Direct bolt-in fitment eliminates guesswork on compatibility

Featuring 100% pre-preg vacuum-dried carbon fiber construction with authentic 2x2 twill weave

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aluminum gaskets can be re-seated carefully if the sealing surface isn't damaged during removal

Comp Cams 1.300" X .520" ID SPRING SEAT FOR GM LS1 Superwide-Mirrors Direct bolt-in fitment eliminates guessworkSpring I. D. Locator: . 060" Thick, . 520" I. D., 1. 300" O. D. The old standard shims will not hold up to the extreme spring pressures and high RPM in today's race engines. COMP Cams offers a simple but effective solution to this problem. These Valve Spring Locators provide a thin, hardened steel alloy seat that will not only protect the head and shim, but also locate and hold the spring in place. Previously, this part has been available only in a