Availability
Valve Spring Locator, Inside Locating Shoulder, Steel, 1.270 in. O.D., 0.570 in. I.D., 0.060 in. Thick, GM LS Engines, Set of 16
Part Number: RSC-PAC-S135-16
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Dual Spring 300 Series Retainer - Retainer for PAC-1222X LS Spring. Lock angle: LS 7 degree
Part Number: RSC-PAC-R355-16
Not Yet Reviewed
Estimated Ship Date: Apr 9, 2026 if ordered today
Estimated Ship Date: Apr 9, 2026 if ordered today
Valve Spring Retainers, 500 Series, Beehive, Titanium, 0.990 in. Outer Spring O.D., 7 degree Lock, Single Spring, Fits GM LS Series Valvetrains, Each
Part Number: RSC-PAC-R511
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
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: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Dual Spring 600 Series Retainer - Light Weight Steel Version of PAC-R335 LS RPM Dual Spring. Lock angle: LS
Part Number: RSC-PAC-R635
Not Yet Reviewed
Estimated Ship Date: Apr 9, 2026 if ordered today
Estimated Ship Date: Apr 9, 2026 if ordered today
Dual Spring 500 Series Retainer - Titanium Retainer for LS Dual Valve Springs PAC-1221 & 1521. Lock angle: L
Part Number: RSC-PAC-R516
Not Yet Reviewed
Estimated Ship Date: Apr 9, 2026 if ordered today
Estimated Ship Date: Apr 9, 2026 if ordered today
Steel Spring Seat for All LS Springs for use in Small Block
Part Number: RSC-PAC-S135
Not Yet Reviewed
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
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 9, 2026 if ordered today
Estimated Ship Date: Apr 9, 2026 if ordered today
Dual Spring 500 Series Retainer - Titanium Retainer for LS Dual Valve Springs PAC-1221 & 1521. Lock angle: L
Part Number: RSC-PAC-R516-16
Not Yet Reviewed
Estimated Ship Date: Apr 9, 2026 if ordered today
Estimated Ship Date: Apr 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: Apr 9, 2026 if ordered today
Estimated Ship Date: Apr 9, 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: Apr 9, 2026 if ordered today
Estimated Ship Date: Apr 9, 2026 if ordered today
Valve Locks, 8mm Stem, Single Radius Groove, -0.05 in. Installed Height, 7 Degree Lock Angle, Steel, Machined, Chevy, LS-1, Pair
Part Number: RSC-PAC-L8116
Not Yet Reviewed
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Valve Springs, Beehive, Single, 1.307 in. O.D., 1.800 in. Installed height, 340 lbs./in. Rate, 1.100 in. Coil Bind Height, Set of 16
Part Number: RSC-PAC-1219-16
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Valve Springs, Beehive, Single, 1.290 in. O.D., 313 lbs./in. Rate, 1.140 in. Coil Bind Height, Set of 16
Part Number: RSC-PAC-1218-16
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Valve Springs, RPM Series, Dual, 1.324 in. O.D., 500 lbs./in. Rate, 1.000 in. Coil Bind Height, Set of 16
Part Number: RSC-PAC-1209X-16
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Valve Springs, RPM Series, Dual, 1.304 in. O.D., 433 lbs./in. Rate, 1.000 in. Coil Bind Height, Set of 16
Part Number: RSC-PAC-1207X-16
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Valve Springs, RPM Series, Beehive, Single, 1.290 in. O.D., 384 lbs/in. Rate, 1.100 in. Coil Bind Height, Set of 16
Part Number: RSC-PAC-1211X-16
Not Yet Reviewed
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Valve Springs, RPM Series, Beehive, Single, 1.307 in. O.D., 340 lbs/in. Rate, 1.100 in. Coil Bind Height, Set of 16
Part Number: RSC-PAC-1219X-16
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Valve Springs, RPM Series, Beehive, Single, 1.290 in. O.D., 313 lbs/in. Rate, 1.140 in. Coil Bind Height, Set of 16
Part Number: RSC-PAC-1218X-16
Not Yet Reviewed
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Valve Springs, Beehive, Single, 1.290 in. O.D., 313 lbs./in. Rate, 1.140 in. Coil Bind Height, Each
Part Number: RSC-PAC-1218
Not Yet Reviewed
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Valve Spring, RPM Series, Beehive, Single, 1.207 in. O.D., 340 lbs/in. Rate, 1.100 in. Coil Bind Height, Each
Part Number: RSC-PAC-1219X
Not Yet Reviewed
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Valve Spring, RPM Series, Beehive, Single, 1.290 in. O.D., 384 lbs/in. Rate, 1.100 in. Coil Bind Height, Each
Part Number: RSC-PAC-1211X
Not Yet Reviewed
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Valve Springs, 1900 Series Hot Rod, Dual, 1.290 in. O.D., Chromoly Steel Retainers, 7 degree Locks, Kit
Part Number: RSC-PAC-KS15
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Valve Springs, Beehive, Single, 1.290 in. O.D., 313 lbs./in. Rate, 1.140 in. Coil Bind Height, Each
Part Number: RSC-PAC-1215
Not Yet Reviewed
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Valve Springs, Beehive, Single, 1.307 in. O.D., 340 lbs./in. Rate, 1.100 in. Coil Bind Height, Each
Part Number: RSC-PAC-1219
Not Yet Reviewed
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
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