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SBC 1.550 Dual Springs, Endurance Solid Roller, .700 Max Lift @ 240 Lb. seat @ 1.900 Installed, 625 Lbs. @ 1.200 Open, 1.130 C.B., 550 Rate, PAC 1243
Part Number: SUM-174030D-1
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Estimated Ship Date: Today
Estimated Ship Date: Today
.550 LIFT DUAL SPRING ONLY
Part Number: JRC-588-GP965-2
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Pushrods, Steel, Heat-Treated, 5/16 in. Diameter, 7.894 in. Length, Universal, Set of 16
Part Number: SUM-G6400100
Estimated Ship Date: Today
Estimated Ship Date: Today
Valve Spring, Specialty and Class Specific, Beehive Series, Single, 436 lbs./in. Rate, 1.190 in. Coil Bind Height, Each
Part Number: RSC-PAC-1409X
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Estimated Ship Date: Today
Estimated Ship Date: Today
Valve Spring, 1200 Series, Dual, 1.274 in. Outside Diameter, 550 lb/in., 0.630 in Inside Diameter, Each
Part Number: RSC-PAC-1237X
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Estimated Ship Date: Today
Estimated Ship Date: Today
Valve Springs, RPM Series, Dual, 1.304 in. O.D., 433 lbs./in. Rate, 1.000 in. Coil Bind Height, Each
Part Number: RSC-PAC-1207X
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Estimated Ship Date: Today
Estimated Ship Date: Today
Rocker Arm, Full Roller, Aluminum, 7/16 in. Stud Mount, 1.5 Ratio, .150 in. Right Offset, Chevy, Each
Part Number: SCC-SCP1011R-1
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Estimated Ship Date: Today
Estimated Ship Date: Today
Valve Spring, 1200 Series Circle Track, Dual, 1.550 in. O.D., 526 lbs./in. Rate, 1.200 in. Coil Bind Height, Each
Part Number: RSC-PAC-1245
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Estimated Ship Date: Today
Estimated Ship Date: Today
Rocker Arm, Heavy Duty, 1.7 Ratio, Roller Fulcrum, Ductile Iron, Catherdral Int. & Exh L92/LS9/LS3 exh. only, GM, Each
Part Number: SUM-141554E-1
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Estimated Ship Date: Today
Estimated Ship Date: Today
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: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 if ordered today
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: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 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
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Estimated Ship Date: Jan 30, 2026 if ordered today
Estimated Ship Date: Jan 30, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Valve, Exhaust, Stainless Steel, 1.60 in. Head Diameter, 0.343 in. Stem, 4.960 in. Length, Chevy, Each
Part Number: SME-50000212-1
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Estimated Ship Date: Today
Estimated Ship Date: Today
Rocker Arms, Gold Series, Full Roller, Stud Mounting Style, 1.7 Ratio, Aluminum, Gold Anodized, Chevrolet, Chevy Big Block, Each
Part Number: SUM-G6830G-1
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Estimated Ship Date: Today
Estimated Ship Date: Today
LS Dual Springs, Hyd. Or LLSR .750 Max Lift @ 160 Lb. seat @ 1.800 Installed, 510 Lb. @1.100 Open, 1.000 C.B., 1.324 Dia., 500 rate, Like PAC 1209X.
Part Number: SUM-174011DP-1
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Estimated Ship Date: Today
Estimated Ship Date: Today
SBC 1.550 Dual Springs, Drag Solid Roller, .800 Max Lift @ 250 Lb. seat @ 2.000 Installed, 765 Lb. @ 1.200 Open, 1.150 C.B., 644 Rate, Like PAC 1225
Part Number: SUM-174031D-1
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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
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Estimated Ship Date: Today
Estimated Ship Date: Today
Dual Spring 600 Series Retainer - Tool Steel Retainer for PAC-1530 & 1335 Dual Valve Springs. Lock angle: mi
Part Number: RSC-PAC-R632
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Estimated Ship Date: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
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Rocker Arm, Full Roller, Aluminum, 7/16 in. Stud Mount, 1.5 Ratio, .150 in. Left Offset, Chevy, Each
Part Number: SCC-SCP1011L-1
Estimated Ship Date: Jan 6, 2026 if ordered today
Estimated Ship Date: Jan 6, 2026 if ordered today
ROCKER ARMS 1.5 SBC V-8 AFR 227, 235-245cc, DART Pro 1 180-230cc & Dart Iron Eagle 165-230cc, Dart SHP 180-220cc, Brodix Track I 215-245cc 3/8 .050 LE
Part Number: SCC-1210L-1
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Estimated Ship Date: Jan 6, 2026 if ordered today
Estimated Ship Date: Jan 6, 2026 if ordered today
ROCKER ARMS 1.5 SBC V-8 AFR 227, 235-245cc, DART Pro 1 180-230cc & Dart Iron Eagle 165-230cc, Dart SHP 180-220cc, Brodix Track I 215-245cc 3/8 .050 RI
Part Number: SCC-1210R-1
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Estimated Ship Date: Jan 6, 2026 if ordered today
Estimated Ship Date: Jan 6, 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: Jan 28, 2026 if ordered today
Estimated Ship Date: Jan 28, 2026 if ordered today
Pushrods, Steel, 5/16 in. Diameter, 7.500 in. Length, Universal, Set of 16
Part Number: SUM-G6408
Estimated Ship Date: Today
Estimated Ship Date: Today
Valve, Intake, Stainless Steel, 2.020 in. Diameter, 0.341 in. Stem, 4.960 in. Length, Chevy, Ford, Each
Part Number: SME-50000211-1
Estimated Ship Date: Today
Estimated Ship Date: Today
BBC 1.645 Triple Springs, .900 Max Lift @ 332 Lb. seat @ 2.100 Installed, 950 Lb. @ 1.200 Open, 1.130 C.B., 687 Rate, 183gr. Like PAC 1248
Part Number: SUM-174045T-1
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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