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PAC-1541-16 PART NUMBER
PAC Circle Track Endurance Valve Springs PAC-1541$667.08Dual Spring, 1.510" Outer Diameter, 1.086 ID outer, .790" Inner Diameter, Seat Pressure 240 @ 2.030, Open Pressure 625 @ 1.250, Coil Bind 1.175", Set of 16 Springs
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PAC-1561-16 PART NUMBER
PAC Circle Track Endurance Valve Springs PAC-1561$667.08Dual Spring, 1.514" Outer Diameter, 1.100ID outer, .804" Inner Diameter, Seat Pressure 250 @ 2.000, Open Pressure 636 @ 1.200, Coil Bind 1.155", Set of 16 Springs
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PAC-1204X-16 PART NUMBER
PAC RPM Series Valve Springs PAC-1204X$420.26Dual Spring, 1.290" Outer Diameter, 0.950" ID outer, .694" Inner Diameter, Seat Pressure 145 @ 1.800, Open Pressure 385 @ 1.150, Coil Bind 1.000", Set of 16 Springs
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PAC-1205X-16 PART NUMBER
PAC RPM Series Valve Springs PAC-1205X$420.26Dual Spring, 1.304" Outer Diameter, 0.950" ID outer, .694" Inner Diameter, Seat Pressure 155 @ 1.800, Open Pressure 410 @ 1.150, Coil Bind 1.000", Set of 16 Springs
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PAC-1206X-16 PART NUMBER
PAC RPM Series Valve Springs PAC-1206X$420.26Dual Spring, 1.290" Outer Diameter, 0.950" ID outer, .680" Inner Diameter, Seat Pressure 145 @ 1.800, Open Pressure 411 @ 1.150, Coil Bind 1.000", Set of 16 Springs
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PAC-1207X-16 PART NUMBER
PAC RPM Series Valve Springs PAC-1207X$420.26Dual Spring, 1.304" Outer Diameter, 0.950" ID outer, .680" Inner Diameter, Seat Pressure 155 @ 1.800, Open Pressure 436 @ 1.150, Coil Bind 1.000", Set of 16 Springs
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PAC-1208X-16 PART NUMBER
PAC RPM Series Valve Springs PAC-1208X$420.26Dual Spring, 1.324" Outer Diameter, 0.950" ID outer, .694" Inner Diameter, Seat Pressure 160 @ 1.800, Open Pressure 482 @ 1.100, Coil Bind 1.000", Set of 16 Springs
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PAC-1209X-16 PART NUMBER
PAC RPM Series Valve Springs PAC-1209X$420.26Dual Spring, 1.324" Outer Diameter, 0.950" ID outer, .680" Inner Diameter, Seat Pressure 160 @ 1.800, Open Pressure 510 @ 1.100, Coil Bind 1.000", Set of 16 Springs
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PAC-1221X-16 PART NUMBER
PAC RPM Series Valve Springs PAC-1221X$240.14Dual Spring, 1.300" Outer Diameter, 0.895" ID outer, .650" Inner Diameter, Seat Pressure 160 @ 1.800, Open Pressure 424 @ 1.150, Coil Bind 1.080", Set of 16 Springs
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PAC-1222X-16 PART NUMBER
PAC RPM Series Valve Springs PAC-1222X$425.82Dual Spring, 1.280" Outer Diameter, 0.925" ID outer, .655" Inner Diameter, Seat Pressure 180 @ 1.800, Open Pressure 480 @ 1.100, Coil Bind 1.055", Set of 16 Springs
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