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RC 390 Titanium Valve Spring Retainers
RC 390 Titanium Valve Spring Retainers
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RC 390 Titanium Valve Spring Retainers

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$94.99
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$94.99
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Titanium Valve Spring Retainers for 390's
Titanium valve spring retainers for the 390 series of motors. If you run your 390 at high RPMs for an extended period of time you will need these. Under these condition the stock valve spring retainers will stretch and destroy your cams. These also run the far more common and readily available 9.48mm valve shim.