PAC Racing Springs Camshafts & Valvetrain

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 13, 2026 if ordered today

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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 13, 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 14, 2026 if ordered today

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Valve Spring Locator, Inside Locating Shoulder, Chromoly, 1.270 in. O.D., 0.570 in. I.D., 0.060 in. Thick, Each

Part Number: RSC-PAC-S111

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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 12, 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

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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 15, 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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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

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Estimated Ship Date: May 14, 2026 if ordered today

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Shims - 1.620 - 0.015 thick

Part Number: RSC-PAC-S199

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Estimated Ship Date: May 13, 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 13, 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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Shims - 1.620 - 0.030 thick

Part Number: RSC-PAC-S197

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Estimated Ship Date: May 13, 2026 if ordered today

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Shims - 1.500 - 0.030 thick

Part Number: RSC-PAC-S193

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

Part Number: RSC-PAC-R363

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Steel Valve Locks - Standard 8 degree - Square Groove - Standard Install Height

Part Number: RSC-PAC-L8073

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Estimated Ship Date: May 14, 2026 if ordered today

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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 12, 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 12, 2026 if ordered today

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Valve Spring Retainers, 300 Series, Steel, 1.235 in. O.D., Dual, 7 degree, Set of 16

Part Number: RSC-PAC-R316-16

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Estimated Ship Date: May 15, 2026 if ordered today

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