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The COMP Cams conical valve spring kit for GM LS1/LS3 engines with tool steel retainers uses a smaller upper-diameter section to reduce active mass and create progressive frequencies that dampen coil oscillations. The kit increases RPM capability for aggressive camshafts and includes springs, tool steel retainers, locks, seals and seats to convert LS1/LS3 heads to conical spring operation.
COMP Cams Conical Valve Spring Kit - GM LS1/LS2/LS3 w/ Tool Steel Retainers
