Availability
PAC Racing Springs Engines & Components
Valve Spring, 1200 Series, Beehive, Single, 1.250 in. Outside Diameter, 363 lb/in., 0.845 in Inside Diameter, Each
Part Number: RSC-PAC-1283
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Valve Springs, 1200 Series, Dual, 1.550 in. O.D., 663 lbs./in. Rate, 1.150 in. Coil Bind Height, Each
Part Number: RSC-PAC-1226
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Valve Spring, RPM Series, Dual, 1.274 in. Outside Diameter, 600 lb/in., 0.630 in Inside Diameter, Each
Part Number: RSC-PAC-1238X
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Valve Spring Retainers, 400 Series, Dual, Titanium, 1.300 in. O.D., 7 degree, Set of 16
Part Number: RSC-PAC-R435-16
Not Yet Reviewed
Estimated Ship Date: Apr 21, 2026 if ordered today
Estimated Ship Date: Apr 21, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Shim Kit - 1.500 Diameter (64 pcs total)
Part Number: RSC-PAC-KS92
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Steel Valve Locks - Mini 8 degree - Radius Groove - Standard Install Height
Part Number: RSC-PAC-L8131-16
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Valve Locks, 10 degree, 1-groove, Machined, Steel, 0.313 in. Stem Diameter, Set of 16 Pairs
Part Number: RSC-PAC-L8067-16
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Steel Valve Locks - Standard 7 degree - Radius Groove - Standard Install Height
Part Number: RSC-PAC-L8152-16
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 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: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
VALVE SPRING SET
Part Number: RSC-PAC-R364-16
Not Yet Reviewed
Estimated Ship Date: Apr 16, 2026 if ordered today
Estimated Ship Date: Apr 16, 2026 if ordered today
Steel Spring Seats (0.060 Thickness)
Part Number: RSC-PAC-S102-16
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Valve Spring, 1200 Series Drag Race, Triple, 1.645 in. O.D., 689 lbs./in. Rate, 1.130 in. Coil Bind Height, Each
Part Number: RSC-PAC-1249
Not Yet Reviewed
RETAINER CHROME MOLY STEEL
Part Number: RSC-PAC-R377
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
VALVE SPRING
Part Number: RSC-PAC-R378
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Shims - 1.620 - 0.015 thick
Part Number: RSC-PAC-S199
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Valve Spring Retainer, 500 Series, Triple, Titanium, 1.480 in. O.D., 10 degree, Each
Part Number: RSC-PAC-R522
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
VALVE SPRING RETAINING KIT
Part Number: RSC-PAC-KS45
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Dual Spring 400 Series Retainer - +0.050 Sportsman Drag Race/Circle Track Retainer. Lock angle: STD 10
Part Number: RSC-PAC-R405
Not Yet Reviewed
Estimated Ship Date: Mar 6, 2026 if ordered today
Estimated Ship Date: Mar 6, 2026 if ordered today
Valve Springs, RPM Series, Dual, Titanium Retainers, Locks, Kit
Part Number: RSC-PAC-KS34
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Valve Springs, 1900 Series Hot Rod, Dual, 1.304 in. O.D., 392 lbs./in. Rate, 1.020 in. Coil Bind Height, Set of 16
Part Number: RSC-PAC-1905-16
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Steel Valve Locks - Standard 10 degree - Square Groove - +0.050 Install Height
Part Number: RSC-PAC-L8093
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Valve Spring, 1200 Series Drag Race, Dual, 1.625 in. O.D., 629 lbs./in. Rate, 1.100 in. Coil Bind Height, Each
Part Number: RSC-PAC-1228
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Valve Springs, Specialty and Class Specific, 604 Create Motor, Single, 1.350 in. O.D., 380 lbs./in. Rate, 1.180 in. Coil Bind Height, Set of 16
Part Number: RSC-PAC-1212X-16
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
VALVE LOCKS PAC STEEL
Part Number: RSC-PAC-L8143
Not Yet Reviewed
Estimated Ship Date: Apr 21, 2026 if ordered today
Estimated Ship Date: Apr 21, 2026 if ordered today
Titanium Valve Locks - Mini 8 degree - Radius Groove - +0.050 Install Height
Part Number: RSC-PAC-L8130-16
Not Yet Reviewed
Estimated Ship Date: Apr 16, 2026 if ordered today
Estimated Ship Date: Apr 16, 2026 if ordered today
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster