Running high RPM, high boost levels or both on your 5.9L Dodge Cummins? Need to eliminate valve float and reversion and gain up to 40 horsepower? Hamilton Cams Cummins valve spring kits solve all those questions. Contact DPPI for 12 and 24 valve springs, locks retainers, push rods and camshafts to make that Cummins reliable and powerful.
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