Availability
LS Dual Springs, Solid Roller, .750 Max Lift @ 250 Lb. seat @ 1.800 Installed, 700 Lb. @ 1.050 Open, .985 C.B., 1.274 Dia., .600 Rate, Like PAC 1238X
Part Number: SUM-174012DP-16
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Hemi or LT Beehive Springs, .625 Lift @ 140 Lb. seat @ 1.900 Install, 438 @ 1.250 Open, 1.215 C.B., 1.290 Dia., 405 Rate, Like PAC 1275X PSI 1515
Part Number: SUM-174014BP-1
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Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Hemi Beehive Springs, .680 Max Lift @ 150 Lb. seat @ 1.800 Installed, 429 @1.120 Open. 1.070 C.B., 1.290 Dia., 410 Rate, Like PAC 1276X PSI 1516
Part Number: SUM-174015BP-1
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Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
7.3 Godzilla Valve Springs, .650 Max Lift @ 160 Lb. seat @ 2.250 Installed, 420 @ 1.600 Open, 1.544 C.B., 1.270 Dia., 400 Rate, Like PAC 1282LX
Part Number: SUM-174020BP-1
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Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
7.3 Godzilla Valve Springs, .650 Max Lift @ 160 Lb. seat @ 2.250 Installed, 420 @ 1.600 Open, 1.544 C.B., 1.270 Dia., 400 Rate, Like PAC 1282LX
Part Number: SUM-174020BP-16
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
BBC 1.625 Dual Springs, Solid Roller .850 Max Lift @ 275 Lb. seat @ 2.000 Installed, 810 Lb. @ 1.150 Open, 1.100 C.B., 629 Rate, 152g Like PAC 1224
Part Number: SUM-174042D-1
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Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
BBC 1.625 Dual Springs, Solid Roller .900 Max Lift @ 280 Lb. seat @ 2.100 Installed, 847 Lb. @ 1.150 Open, 1.100 C.B., 629 Rate, 152g Like PAC 1228
Part Number: SUM-174043D-1
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Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
BBC 1.625 Dual Springs, Solid Roller .900 Max Lift @ 280 Lb. seat @ 2.100 Installed, 847 Lb. @ 1.150 Open, 1.100 C.B., 629 Rate, 152g Like PAC 1228
Part Number: SUM-174043D-16
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
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-16
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
LS Dual Springs, Solid Roller, .750 Max Lift @ 250 Lb. seat @ 1.800 Installed, 700 Lb. @ 1.050 Open, .985 C.B., 1.274 Dia., .600 Rate, Like PAC 1238X.
Part Number: SUM-174012DP-1
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
LS Dual Springs, Solid Roller.765 Max Lift @ 250 Lb. seat @ 1.800 Installed, 860 Lb. @ 1.050 Open, .985 C.B., 1.300 O.D., 813 Rate, Like PAC 1335
Part Number: SUM-174013DP-1
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
2018-23 Ford Coyote V8 Valve Springs, .551 Max lift @ 80 Lb. seat @ 1.811 Installed, 214 Lb. @ 1.260 Open, 1.208 CB, 1.031 Dia., 245 Rate, PAC 1281X
Part Number: SUM-174022BP-1
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
2018-23 Ford Coyote V8 Valve Springs, .551 Max lift @ 80 Lb. seat @ 1.811 Installed, 214 Lb. @ 1.260 Open, 1.208 CB, 1.031 Dia., 245 Rate, PAC 1281X
Part Number: SUM-174022BP-16
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Pro LS Valve Spring, Drop in, 0.630 Max Lift, Single Beehive, 1.300 in. O.D., 340 lbs./in. Spring Rate, 1.800 in. Installed Height, Each
Part Number: SUM-174005-1
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
6.4 Apache Hemi Valve Springs, .650 Max Lift @ 175 Lb. seat @ 2.050 Installed, 450 Lb. @ 1.396 Open, 1.346 C.B. 1.345 Dia., 423 Rate, Like PAC 1232X
Part Number: SUM-174016BP-1
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
SBC or BBC 1.500 Dual Springs, Advanced S.R. .850 Max Lift @ 275 Lb. seat @ 2.050 Installed, 938 Lb. @ 1.200 Open, 1.130 C.B., 780 Rate, 144g PAC 1330
Part Number: SUM-174040DP-16
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Engine Swap Combos, BluePrint Pro Series Mopar Engine, Engine Mounts, Frame Mounts, Transmission Crossmember, Dodge, Plymouth, Kit
Part Number: CMB-08-0268
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Engine Swap Combos, BluePrint Pro Series Mopar Engine, Engine Mounts, Frame Mounts, Headers, Transmission Crossmember, Mopar, Kit
Part Number: CMB-08-0271
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Engine Swap Combos, BluePrint Pro Series Mopar Engine, Engine Mounts, Frame Mounts, Transmission Crossmember, Dodge, Plymouth, Kit
Part Number: CMB-08-0277
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Cylinder Deactivation Delete Combo, DOD, Chevy, GMC, 2014-2018 5.3L, Kit
Part Number: CMB-09-0048
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Pro LS 4340 Forged Steel H-Beam connecting rod, 6.125 in. length, .927 pin, ARP 2000 7/16 12 pt. rod bolts, full floating, stroker clearanced, LS1
Part Number: SUM-LS6125927-1
Estimated Ship Date: Jan 15, 2026 if ordered today
Estimated Ship Date: Jan 15, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Rocker Arm Trunnion Upgrade Kit, Trunnion Upgrade, Chevy, LS, Set of 16
Part Number: SME-143002
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Pro LS 4340 Forged Steel H-Beam connecting rod, 6.098 in. length, .945 pin, ARP 2000 7/16 12 pt. rod bolts, full floating, stroker clearanced, LS1
Part Number: SUM-LS6098945-1
Not Yet Reviewed
Estimated Ship Date: Jan 15, 2026 if ordered today
Estimated Ship Date: Jan 15, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Estimated Ship Date: Tomorrow
Engine Kit, Crank, Flat-Top Piston/Moly Ring, Rod, Main, Gaskets, Oil Pump, Timing Set, Chevy, 350, Kit
Part Number: SES-3480006050
Not Yet Reviewed
Cannot be shipped Internationally if ordered today
Cannot be shipped Internationally if ordered today
Summit HDR Pushrods Small Block Chevy 5/16 7.825 Length, Premium One-Piece .105 Wall 4130 Seamless Chromoly 210 degree ends Heat-Treated, Set of 16
Part Number: SUM-14957825
Not Yet Reviewed
Estimated Ship Date: Dec 8, 2025 if ordered today
Estimated Ship Date: Dec 8, 2025 if ordered today
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