COMP Cams ID Spring Seats Eb 1.635 X 57 4786-100 135i

COMP Cams ID Spring Seats Eb 1.635 X 57 4786-100 135iCOMP Cams Valve Springs, Retainers 4786 100 The older style standard shims will not hold up to the extreme spring pressures and high RPM found in racing engines being built today. COMP Cams offers a simple but effective solution to this problem a thin, hardened steel alloy seat which 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 cup form with the retaining

Replacement parts require crank adapter for proper use

Lightweight durable and heat-resistant construction

Order now and experience the difference

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