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26 Results Found For "4140"
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!
Showing In Stock Items. Show All 37 Items.
SEAT 4140 BLK OXIDE
Part Number: RSC-PAC-S137
Not Yet Reviewed
Estimated Ship Date: Jun 9, 2026 if ordered today
Estimated Ship Date: Jun 9, 2026 if ordered today
Valve Spring Retainers, 300 Series, Steel, 1.035 in. O.D., Single, Beehive, 10 degree, Set of 16
Part Number: RSC-PAC-R310-16
Estimated Ship Date: Today
Estimated Ship Date: Today
Valve Spring Retainer, 300 Series, Steel, 1.035 in. O.D., Single, Beehive, 7 degree, Each
Part Number: RSC-PAC-R311
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Valve Spring Retainers, 300 Series, Steel, 1.035 in. O.D., Single, Beehive, 7 degree, Set of 16
Part Number: RSC-PAC-R363-16
Estimated Ship Date: Today
Estimated Ship Date: Today
Valve Spring Retainer, 300 Series, Steel, 1.035 in. O.D., Single, Beehive, 7 degree, Each
Part Number: RSC-PAC-R363
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Beehive Spring Retainer 300 Series - Retainer for PAC-1255, 1295, & 1595 Valve Springs. Lock angle: STD 10 de
Part Number: RSC-PAC-R313-16
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Valve Spring Retainer, 300 Series, Steel, 1.035 in. O.D., Single, Beehive, 10 degree, Each
Part Number: RSC-PAC-R310
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Dual Spring 300 Series Retainer - Retainer for PAC-1202 & 1203 Valve Springs. Lock angle: 7 degree
Part Number: RSC-PAC-R334
Not Yet Reviewed
Estimated Ship Date: Jun 9, 2026 if ordered today
Estimated Ship Date: Jun 9, 2026 if ordered today
Dual Spring 300 Series Retainer - Retainer for LS RPM Series Dual Valve Springs. Lock angle: LS 7 degree
Part Number: RSC-PAC-R335-16
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Valve Spring Retainers, 300 Series, Steel, 0.865 in. O.D., Single, Beehive, 7 degree, Set of 16
Part Number: RSC-PAC-R312-16
Estimated Ship Date: Today
Estimated Ship Date: Today
Valve Spring Retainers, 300 Series, Steel, 1.035 in. O.D., Single, Beehive, 7 degree, Set of 16
Part Number: RSC-PAC-R311-16
Estimated Ship Date: Today
Estimated Ship Date: Today
Valve Spring Retainer, 300 Series, Steel, 0.865 in. O.D., Single, Beehive, 7 degree, Each
Part Number: RSC-PAC-R312
Not Yet Reviewed
Estimated Ship Date: Jun 10, 2026 if ordered today
Estimated Ship Date: Jun 10, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Beehive 300 Series Retainer - Retainer for Super Stock Only. Lock angle: STD 7 degree
Part Number: RSC-PAC-R333-16
Not Yet Reviewed
Estimated Ship Date: Jun 8, 2026 if ordered today
Estimated Ship Date: Jun 8, 2026 if ordered today
Dual Spring 300 Series Retainer - Retainer for Marine Applications. Lock angle: STD 10 degree
Part Number: RSC-PAC-R315
Not Yet Reviewed
Estimated Ship Date: Jun 10, 2026 if ordered today
Estimated Ship Date: Jun 10, 2026 if ordered today
Valve Spring Retainer, 300 Series, Steel, 0.800 in. O.D., Single, Tall, Beehive, 7 degree, Each
Part Number: RSC-PAC-R346
Estimated Ship Date: Today
Estimated Ship Date: Today
Beehive 300 Series Retainer - Retainer for PAC-1218, 1220 & others with FMOD locks. Lock angle: FMOD 7 degree
Part Number: RSC-PAC-R362-16
Not Yet Reviewed
Estimated Ship Date: Jun 9, 2026 if ordered today
Estimated Ship Date: Jun 9, 2026 if ordered today
Valve Spring Retainers, 300 Series, Steel, 1.400 in. O.D., Dual, 10 degree, Each
Part Number: RSC-PAC-R391
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Valve Spring Retainers, 300 Series, Chromoly Steel, 1.015 in. O.D., Single, Beehive, 7 degree, Mini, Each
Part Number: RSC-PAC-R375
Not Yet Reviewed
Estimated Ship Date: Jun 9, 2026 if ordered today
Estimated Ship Date: Jun 9, 2026 if ordered today
Beehive Spring Retainer 300 Series - Retainer for PAC-1255, 1295, & 1595 Valve Springs. Lock angle: STD 10 de
Part Number: RSC-PAC-R313
Not Yet Reviewed
Estimated Ship Date: Jun 9, 2026 if ordered today
Estimated Ship Date: Jun 9, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
PAC Racing 300 Series Valve Spring Retainers PAC-R313-16
Not Yet Reviewed
Estimated Ship Date: Today
Beehive 300 Series Retainer - Retainer for Super Stock Only. Lock angle: STD 7 degree
Part Number: RSC-PAC-R333
Not Yet Reviewed
Estimated Ship Date: Jun 15, 2026 if ordered today
Estimated Ship Date: Jun 15, 2026 if ordered today
Valve Spring Retainer, 300 Series, Steel, 1.235 in. O.D., Dual, 7 degree, Each
Part Number: RSC-PAC-R316
Not Yet Reviewed
Estimated Ship Date: Jun 10, 2026 if ordered today
Estimated Ship Date: Jun 10, 2026 if ordered today
VALVE SPRING RETAINER
Part Number: RSC-PAC-R382
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Beehive 300 Series Retainer - Retainer for V-Rod. Lock angle: 6 degree
Part Number: RSC-PAC-R342-16
Not Yet Reviewed
Estimated Ship Date: Jun 9, 2026 if ordered today
Estimated Ship Date: Jun 9, 2026 if ordered today
Dual Spring 300 Series Retainer - Retainer for PAC-1222X LS Spring. Lock angle: LS 7 degree
Part Number: RSC-PAC-R355
Not Yet Reviewed
Estimated Ship Date: Jun 9, 2026 if ordered today
Estimated Ship Date: Jun 9, 2026 if ordered today
Valve Spring Retainers, 300 Series, Steel, 1.235 in. O.D., Dual, 7 degree, Set of 16
Part Number: RSC-PAC-R316-16
Not Yet Reviewed
Estimated Ship Date: Jun 10, 2026 if ordered today
Estimated Ship Date: Jun 10, 2026 if ordered today
