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PAC Racing Springs delivers superior valvetrain stability and performance. Just ask the thousands of competitors who use PAC springs on top motorsports circuits—NHRA,...
PAC Racing Springs delivers superior valvetrain stability and performance. Just ask the thousands of competitors who use PAC springs on top motorsports circuits—NHRA, NASCAR, NMRA, Formula 1, 24 Hours of LeMans, Sprint Car, IHBA Boat Racing, Baja 1000, and more. PAC Racing Springs valve springs, valve locks, lifters, and retainers are designed and forged with the latest technology. We’ve got innovative, proven PAC Racing single, dual, triple, and beehive valve springs to meet your competition engine’s demands. Plus, we have titanium and steel valve locks, plastic valve spring dampers, titanium and steel...
PAC Racing Springs delivers superior valvetrain stability and performance. Just ask the thousands of competitors who use PAC springs on top motorsports circuits—NHRA, NASCAR, NMRA, Formula 1, 24 Hours of LeMans, Sprint Car, IHBA Boat Racing, Baja 1000, and more. PAC Racing Springs valve springs, valve locks, lifters, and retainers are designed and forged with the latest technology. We’ve got innovative, proven PAC Racing single, dual, triple, and beehive valve springs to meet your competition engine’s demands. Plus, we have titanium and steel valve locks, plastic valve spring dampers, titanium and steel retainers, and more. Shop PAC Racing Springs at Summit Racing today!
Valve Spring, 1300 Series, Dual, 1.574 in. Outside Diameter, 506 lb/in., 0.826 in Inside Diameter, Each
Part Number: RSC-PAC-1342
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Valve Spring, 1300 Series, Dual, 1.500 in. Outside Diameter, 467 lb/in., 0.790 in Inside Diameter, Each
Part Number: RSC-PAC-1340
Not Yet Reviewed
Estimated Ship Date: Sep 11, 2025 if ordered today
Estimated Ship Date: Sep 11, 2025 if ordered today
VALVE SPRINGS
Part Number: RSC-PAC-1343
Not Yet Reviewed
Estimated Ship Date: Sep 11, 2025 if ordered today
Estimated Ship Date: Sep 11, 2025 if ordered today
Valve Springs, 1300 Series Drag Race, Triple, 1.645 in. Outside Diameter, 689 lb/in., 0.689 in Inside Diameter, Set of 16
Part Number: RSC-PAC-1349-16
Not Yet Reviewed
Estimated Ship Date: Sep 8, 2025 if ordered today
Estimated Ship Date: Sep 8, 2025 if ordered today
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Valve Springs, 1300 Series Drag Race, Triple, 1.645 in. Outside Diameter, 687 lb/in., 0.687 in Inside Diameter, Set of 16
Part Number: RSC-PAC-1348-16
Estimated Ship Date: Sep 4, 2025 if ordered today
Estimated Ship Date: Sep 4, 2025 if ordered today
Need It Sooner? We recommend these similar substitute parts:
RACING VALCE SPRINGS
Part Number: RSC-PAC-1343-16
Not Yet Reviewed
Estimated Ship Date: Sep 11, 2025 if ordered today
Estimated Ship Date: Sep 11, 2025 if ordered today
Valve Springs, 1300 Series Drag Race, Triple, 1.645 in. Outside Diameter, 682 lb/in., 0.635 in Inside Diameter, Set of 16
Part Number: RSC-PAC-1347-16
Not Yet Reviewed
Estimated Ship Date: Sep 11, 2025 if ordered today
Estimated Ship Date: Sep 11, 2025 if ordered today
Valve Spring, 1300 Series, Dual, 1.500 in. Outside Diameter, 467 lb/in., 0.790 in Inside Diameter, Set of 16
Part Number: RSC-PAC-1340-16
Not Yet Reviewed
Estimated Ship Date: Sep 11, 2025 if ordered today
Estimated Ship Date: Sep 11, 2025 if ordered today
Valve Springs, 1300 Series Circle Track, Dual, 1.575 in. Outside Diameter, 620 lb/in., 0.720 in Inside Diameter, Set of 16
Part Number: RSC-PAC-1341-16
Not Yet Reviewed
Estimated Ship Date: Sep 11, 2025 if ordered today
Estimated Ship Date: Sep 11, 2025 if ordered today
Valve Spring, 1300 Series, Dual, 1.574 in. Outside Diameter, 506 lb/in., 0.826 in Inside Diameter, Set of 16
Part Number: RSC-PAC-1342-16
Not Yet Reviewed
Estimated Ship Date: Sep 11, 2025 if ordered today
Estimated Ship Date: Sep 11, 2025 if ordered today
Valve Spring, 1300 Series, Dual, 1.570 in. Outside Diameter, 743 lb/in., 0.780 in Inside Diameter, Each
Part Number: RSC-PAC-1344
Not Yet Reviewed
Estimated Ship Date: Sep 11, 2025 if ordered today
Estimated Ship Date: Sep 11, 2025 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Not Yet Reviewed
Estimated Ship Date: Sep 8, 2025
Valve Springs, 1300 Series Circle Track, Dual, 1.570 in. Outside Diameter, 743 lb/in., 0.780 in Inside Diameter, Set of 16
Part Number: RSC-PAC-1344-16
Not Yet Reviewed
Estimated Ship Date: Sep 8, 2025 if ordered today
Estimated Ship Date: Sep 8, 2025 if ordered today
Valve Spring, 1300 Series, Triple, 1.645 in. Outside Diameter, 682 lb/in., 0.635 in Inside Diameter, Each
Part Number: RSC-PAC-1347
Not Yet Reviewed
Estimated Ship Date: Sep 11, 2025 if ordered today
Estimated Ship Date: Sep 11, 2025 if ordered today
Valve Spring, 1300 Series Drag Race, Triple, 1.645 in. Outside Diameter, 689 lb/in., 0.689 in Inside Diameter, Each
Part Number: RSC-PAC-1349
Not Yet Reviewed
Estimated Ship Date: Sep 11, 2025 if ordered today
Estimated Ship Date: Sep 11, 2025 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Valve Spring Locator, Inside Locating Shoulder, Chromoly, 1.500 in. O.D., 0.570 in. I.D., 0.030 in. Thick, Each
Part Number: RSC-PAC-S134
Estimated Ship Date: Today
Estimated Ship Date: Today
Steel Seats - .030 thick
Part Number: RSC-PAC-S134-16
Not Yet Reviewed
Estimated Ship Date: Sep 11, 2025 if ordered today
Estimated Ship Date: Sep 11, 2025 if ordered today
Need It Sooner? We recommend these similar substitute parts:
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