Availability
PAC Racing Springs Engines & Components
Dual Spring 400 Series Retainer - Titanium Retainer for PAC-1222X Valve Spring. Lock angle: LS 7 degree
Part Number: RSC-PAC-R455
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Valve Locks, 8 Degree, 5/16 in. Stem, Titanium, Pair
Part Number: RSC-PAC-L8139
Not Yet Reviewed
Valve Spring Retainers, 300 Series, Dual Spring, 7 Degree, 1.300 in. O.D. Outer, 0.940 in. O.D. Inner, Chromoly Steel, Chevy, LS, Each
Part Number: RSC-PAC-R335
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
PAC Racing 300 Series Valve Spring Retainers PAC-R335-16
Not Yet Reviewed
Estimated Ship Date: 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
Valve Spring Locator, Inside Locating Shoulder, Chromoly, 1.285 in. O.D., 0.575 in. I.D., 0.060 in. Thick, Each
Part Number: RSC-PAC-S159
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Valve Spring Locator, Inside Locating Shoulder, Chromoly, 1.450 in. O.D., 0.630 in. I.D., 0.060 in. Thick, Each
Part Number: RSC-PAC-S113
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Steel Spring Seats (0.060 Thickness)
Part Number: RSC-PAC-S131
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, Dual, 1.244 in. Outside Diameter, 540 lb/in, 0.624 in. Inside Diameter, Set of 16
Part Number: RSC-PAC-1202-16
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Valve Spring, 1200 Series Drag Race, Triple, 1.645 in. O.D., 682 lbs./in. Rate, 1.130 in. Coil Bind Height, Each
Part Number: RSC-PAC-1247
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Valve Springs, 1900 Series Hot Rod, Dual, 1.290 in. O.D., 370 lbs./in. Rate, 1.010 in. Coil Bind Height, Set of 16
Part Number: RSC-PAC-1904-16
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Valve Springs, Beehive, Single, 1.061 in. O.D., 275 lbs./in. Rate, 1.400 in. Coil Bind Height, Set of 16
Part Number: RSC-PAC-1214-16
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 Retainer, 400 Series, Titanium, 1.480 in. O.D., Tall, Triple, 10 degree, Each
Part Number: RSC-PAC-R401
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:
PAC Racing 400 Series Valve Spring Retainers PAC-R401-16
Not Yet Reviewed
Estimated Ship Date: Today
Valve Spring, 1200 Series Circle Track, Dual, 1.550 in. O.D., 550 lbs./in. Rate, 1.100 in. Coil Bind Height, Each
Part Number: RSC-PAC-1243
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
VALVE LOCKS PAC STEEL
Part Number: RSC-PAC-L8088
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Steel Valve Locks - Standard 7 degree - Radius Groove - Standard Install Height
Part Number: RSC-PAC-L8150
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Titanium Valve Locks - Standard 10 degree - Square Groove - Standard Install Height
Part Number: RSC-PAC-L8090-16
Not Yet Reviewed
Estimated Ship Date: Apr 16, 2026 if ordered today
Estimated Ship Date: Apr 16, 2026 if ordered today
Titanium Valve Locks - Mini 8 degree - Radius Groove - Standard Install Height
Part Number: RSC-PAC-L8121-16
Not Yet Reviewed
Estimated Ship Date: Apr 16, 2026 if ordered today
Estimated Ship Date: Apr 16, 2026 if ordered today
Titanium Valve Locks - Standard 10 degree - Square Groove - +0.050 Install Height
Part Number: RSC-PAC-L8047-16
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Titanium Valve Locks - Standard 10 degree - Square Groove - +0.050 Install Height
Part Number: RSC-PAC-L8091-16
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Titanium Valve Locks - Mini 8 degree - Radius Groove - Standard Install Height
Part Number: RSC-PAC-L8123-16
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:
Titanium Valve Locks - Standard 10 degree - Square Groove - Standard Install Height
Part Number: RSC-PAC-L8005-16
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
VALVE LOCKS PAC Ti
Part Number: RSC-PAC-L8124
Not Yet Reviewed
Estimated Ship Date: Apr 16, 2026 if ordered today
Estimated Ship Date: Apr 16, 2026 if ordered today
VALVE SPRING BBC STOCK ELIM
Part Number: RSC-PAC-1427H
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Titanium Valve Locks - Standard 10 degree - Radius Groove - +0.050 Install Height
Part Number: RSC-PAC-L8079
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Shims - 1.500 - 0.015 thick
Part Number: RSC-PAC-S195
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
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