| PAC RPM Series Beehive Valve Springs PAC-1218X
PAC's RPM Series process uses all of the latest advancements from their circle track and drag racing successes. This new process administered to great designs allows for a performance increase that exceeds all demands. PAC has raised the bar with it's RPM Series Valve Springs.
PART NUMBER:PAC-1218X
- MPN:PAC-1218X
- TYPE:Beehive Valve Springs
- SPRING DIAMETER BOTTOM (IN.):1.290
- SPRING DIAMETER TOP (IN.):1.055
- SPRING I.D. BOTTOM (IN.):0.885
- SPRING I.D. TOP (IN.):0.650
- MAX LIFT (IN.):0.600
- LOAD (LBS) @ INSTALLED HEIGHT (IN):140 @ 1.800
- OPEN LOAD (LBS) @ OPEN HEIGHT (IN.):328 @ 1.200
- COIL BIND (IN.):1.140
- RATE (LBS/IN.SQ):313
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