Hi-Tech Performance Mechanical Roller Valve SpringStyle: Dual with Damper Outer O.D.: 1.625”Closed Pressure: 205 @ 1.900"Open Pressure: 680 @ 1.200"Coil Bind: 1.125"
Howards Cams Pacaloy® Mechanical Roller Valve Springs w/ Special ProcessingStyle: Triple Outer O.D.: 1.681"Closed Pressure: 500 @ 2.200"Open Pressure: 1256 @ 1.300"Coil Bind: 1.100"
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