Availability
BBC 1.625 Dual Springs, Solid Roller .850 Max Lift @ 275 Lb. seat @ 2.000 Installed, 810 Lb. @ 1.150 Open, 1.100 C.B., 629 Rate, 152g Like PAC 1224
Part Number: SUM-174042D-1
Not Yet Reviewed
Estimated Ship Date: Monday 12/8/2025
Estimated Ship Date: Monday 12/8/2025
BBC 1.625 Dual Springs, Solid Roller .900 Max Lift @ 280 Lb. seat @ 2.100 Installed, 847 Lb. @ 1.150 Open, 1.100 C.B., 629 Rate, 152g Like PAC 1228
Part Number: SUM-174043D-1
Not Yet Reviewed
Estimated Ship Date: Monday 12/8/2025
Estimated Ship Date: Monday 12/8/2025
6.4 Apache Hemi Valve Springs, .650 Max Lift @ 175 Lb. seat @ 2.050 Installed, 450 Lb. @ 1.396 Open, 1.346 C.B. 1.345 Dia., 423 Rate, Like PAC 1232X
Part Number: SUM-174016BP-1
Not Yet Reviewed
Estimated Ship Date: Monday 12/8/2025
Estimated Ship Date: Monday 12/8/2025
Valve Springs, RPM Series, Dual, 1.324 in. O.D., 460 lbs./in. Rate, 1.000 in. Coil Bind Height, Each
Part Number: RSC-PAC-1208X
Not Yet Reviewed
Estimated Ship Date: Jan 27, 2026 if ordered today
Estimated Ship Date: Jan 27, 2026 if ordered today
Dual Spring 500 Series Retainer - Titanium Retainer for PAC-1245 & 1289 Dual Valve Springs. Lock angle: STD 1
Part Number: RSC-PAC-R536
Not Yet Reviewed
Estimated Ship Date: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Not Yet Reviewed
Estimated Ship Date: Monday 12/8/2025
Dual Spring 500 Series Retainer - Titanium Retainer for PAC-1342, 1386 & 1396 Dual Valve Springs. Lock angle
Part Number: RSC-PAC-R537
Not Yet Reviewed
Estimated Ship Date: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 if ordered today
Dual Spring 500 Series Retainer - Titanium Retainer for PAC-1342, 1386 & 1396 Dual Valve Springs. Lock angle
Part Number: RSC-PAC-R538
Not Yet Reviewed
Estimated Ship Date: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 if ordered today
Dual Spring 500 Series Retainer - Titanium Retainer for PAC-1240, 1340 & 1540 Dual Valve Springs. Lock angle
Part Number: RSC-PAC-R540
Not Yet Reviewed
Estimated Ship Date: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 if ordered today
Dual Spring 500 Series Retainer - Titanium Retainer for PAC-1226 & 1326 Dual Valve Springs. Lock angle: STD
Part Number: RSC-PAC-R541
Not Yet Reviewed
Estimated Ship Date: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 if ordered today
Dual Spring 500 Series Retainer - Titanium Retainer for all 1.050 ID Dual Valve Springs. Lock angle: mini 8
Part Number: RSC-PAC-R544
Not Yet Reviewed
Estimated Ship Date: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 if ordered today
Dual Spring 500 Series Retainer - Titanium Retainer for PAC-1244 Dual Valve Spring. Lock angle: STD 8 degree
Part Number: RSC-PAC-R551
Not Yet Reviewed
Estimated Ship Date: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 if ordered today
Dual Spring 600 Series Retainers - Tool Steel Retainer for PAC-1226 & 1326 Dual Valve Springs. Lock angle: S
Part Number: RSC-PAC-R606
Not Yet Reviewed
Estimated Ship Date: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 if ordered 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: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 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: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 if ordered today
Dual Spring 600 Series Retainer - Tool Steel Retainer for PAC-1385 & 1395 Dual Valve Springs. Lock angle: ST
Part Number: RSC-PAC-R614
Not Yet Reviewed
Estimated Ship Date: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 if ordered today
Dual Spring 600 Series Retainer - Tool Steel Retainer for PAC-1227, 1239, 1254, 1297 & 1509 Dual Valve Springs
Part Number: RSC-PAC-R615
Not Yet Reviewed
Estimated Ship Date: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 if ordered today
Dual Spring 600 Series Retainers - Tool Steel Retainer for PAC-1385 & 1395 Dual Valve Springs. Lock angle: L
Part Number: RSC-PAC-R619
Not Yet Reviewed
Estimated Ship Date: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 if ordered today
Valve Spring Retainers, 600 Series, Steel, 1.400 in. O.D., Dual, 8 degree, Each
Part Number: RSC-PAC-R641
Not Yet Reviewed
Estimated Ship Date: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 if ordered today
Dual Spring 600 Series Retainer - Tool Steel Retainer for all 1.050 ID Dual Valve Springs. Lock angle: mini
Part Number: RSC-PAC-R644
Not Yet Reviewed
Estimated Ship Date: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 if ordered today
Beehive 600 Series Retainer - Tool Steel retainer PAC- 1200 & 1201 Valve Spring. Lock angle: STD 8 degree
Part Number: RSC-PAC-R649
Not Yet Reviewed
Estimated Ship Date: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 if ordered today
Dual Spring 600 Series Retainer - Tool Steel Retainer for RPM Series Dual Valve Springs. Lock angle: mini 8
Part Number: RSC-PAC-R650
Not Yet Reviewed
Estimated Ship Date: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 if ordered today
Dual Spring 600 Series Retainer - Tool Steel retainer for PAC-1222X Valve Spring. Lock angle: LS 7 degree
Part Number: RSC-PAC-R655
Not Yet Reviewed
Estimated Ship Date: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 if ordered today
Dual Spring 500 Series Retainer - Titanium Retainerfor PAC-1385 & 1395 Dual Valve Springs. Lock angle: STD 10
Part Number: RSC-PAC-R514
Not Yet Reviewed
Estimated Ship Date: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 if ordered today
Dual Spring 500 Series Retainer - Titanium Retainer for PAC-1227, 1239, 1254, 1297 & 1509 Dual Valve Springs.
Part Number: RSC-PAC-R515
Not Yet Reviewed
Estimated Ship Date: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 if ordered today
Valve Springs, RPM Series, Dual, 1.290 in. O.D., 369 lbs./in. Rate, 1.000 in. Coil Bind Height, Each
Part Number: RSC-PAC-1204X
Not Yet Reviewed
Estimated Ship Date: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 if ordered today
Modal Header
Call To Order
This is a custom order part. You can order this part by Contacting Us.