PAC Racing Springs Engines & Components

RETAINER CHROME MOLY STEEL

Part Number: RSC-PAC-R394-16

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Estimated Ship Date: May 7, 2026 if ordered today

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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

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

Dual Spring 500 Series Retainer - Titanium Retainer for PAC-1574 Dual Spring. Lock angle: STD 8

Part Number: RSC-PAC-R553

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Estimated Ship Date: May 6, 2026 if ordered today

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Dual Spring 500 Series Retainer - Titanium Retainer for PAC-1341 Valve Spring. Lock angle: STD 8 degree

Part Number: RSC-PAC-R557

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Estimated Ship Date: May 6, 2026 if ordered today

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Valve Spring Retainers, 400 Series, Dual, Titanium, 1.300 in. O.D., 7 degree, Set of 16

Part Number: RSC-PAC-R435-16

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Estimated Ship Date: May 11, 2026 if ordered today

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Valve Spring, RPM Series, Dual, 1.274 in. Outside Diameter, 600 lb/in., 0.630 in Inside Diameter, Each

Part Number: RSC-PAC-1238X

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Estimated Ship Date: May 11, 2026 if ordered today

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Valve Spring Retainer, 500 Series, Triple, Titanium, 1.480 in. O.D., 10 degree, Each

Part Number: RSC-PAC-R522

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Estimated Ship Date: May 5, 2026 if ordered today

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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

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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

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 11, 2026 if ordered today

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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

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Estimated Ship Date: May 11, 2026 if ordered today

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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

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Estimated Ship Date: Today

Shims - 1.620 - 0.015 thick

Part Number: RSC-PAC-S199

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Estimated Ship Date: May 6, 2026 if ordered today

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Valve Locks, 10 degree, Square Groove-style, Machined, Steel, 1-groove, 0.344 in. Stem Diameter, Pair

Part Number: RSC-PAC-L8025

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Steel Spring Seats (0.060 Thickness)

Part Number: RSC-PAC-S114

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Estimated Ship Date: May 6, 2026 if ordered today

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Valve Spring, 1900 Series Hot Rod, Dual, 1.540 in. O.D., 431 lbs./in. Rate, 1.125 in. Coil Bind Height, Each

Part Number: RSC-PAC-1924

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Estimated Ship Date: Today

Shims - 1.620 - 0.030 thick

Part Number: RSC-PAC-S197

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Estimated Ship Date: May 6, 2026 if ordered today

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Shims - 1.500 - 0.030 thick

Part Number: RSC-PAC-S193

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Valve Spring Retainer, 300 Series, Steel, 1.035 in. O.D., Single, Beehive, 7 degree, Each

Part Number: RSC-PAC-R363

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Valve Locks, 10 degree, Square Groove-style, Machined, Steel, 1-groove, 0.344 in. Stem Diameter, 0.050 in. Installed Height, Pair

Part Number: RSC-PAC-L8027

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Valve Locks, 8 degree, Square Groove-style, Machined, Steel, 1-groove, 0.342 in. Stem Diameter, Set of 16 Pairs

Part Number: RSC-PAC-L8035-16

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Estimated Ship Date: May 11, 2026 if ordered today

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Valve Locks, 10 degree, 1-groove, Machined, Steel, 0.313 in. Stem Diameter, Set of 16 Pairs

Part Number: RSC-PAC-L8067-16

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Estimated Ship Date: May 11, 2026 if ordered today

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Shim Kit - 1.620 Diameter (64 pcs total)

Part Number: RSC-PAC-KS91

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Estimated Ship Date: May 5, 2026 if ordered today

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Steel Valve Locks - Mini 8 degree - Radius Groove - +0.050 Install Height

Part Number: RSC-PAC-L8136

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Estimated Ship Date: May 6, 2026 if ordered today

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Valve Springs, 1300 Series Circle Track, Dual, 1.570 in. Outside Diameter, 743 lb/in., 0.780 in Inside Diameter, Set of 16

Part Number: RSC-PAC-1344-16

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Estimated Ship Date: May 5, 2026 if ordered today

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Valve Spring Retainer, 300 Series, Steel, 0.800 in. O.D., Single, Tall, Beehive, 7 degree, Each

Part Number: RSC-PAC-R346

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today