Engines & Components
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Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched...
Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched top end kits, and complete rotating assemblies from the biggest names in the industry. You can add a set of high-flow cylinder heads to your powerplant, upgrade your valvetrain, improve your oiling system, or drop in a new set of pistons. We also have a complete selection of crankshafts, connecting rods, harmonic balancers, pulleys, and engine brackets. We even have everything you need to restore the horsepower that time has stolen from your...
Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched top end kits, and complete rotating assemblies from the biggest names in the industry. You can add a set of high-flow cylinder heads to your powerplant, upgrade your valvetrain, improve your oiling system, or drop in a new set of pistons. We also have a complete selection of crankshafts, connecting rods, harmonic balancers, pulleys, and engine brackets. We even have everything you need to restore the horsepower that time has stolen from your daily driver.
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ENGINE FASTENER, BTR ROD BOLT, GEN 4, LIKE 11570662 - BTR70662
Part Number: BTC-BTR70662
Estimated Ship Date: Today
Estimated Ship Date: Today
BUILD IT WITH SUMMIT!
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-16
Not Yet Reviewed
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, 183 gr. Like PAC 1248
Part Number: SUM-174045T-16
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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-16
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
LS Dual Springs, Hyd. Roller,.650 Max Lift @ 160 Lb. seat @ 1.800 Installed, 425 Lb. @ 1.125 Open, 1.020 C.B., 1.304 Dia., 392 Rate, Like PAC 1905 .
Part Number: SUM-174010D-16
Not Yet Reviewed
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-16
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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-16
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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-16
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
BTR LS REAR ENGINE COVER LIKE 12639250
Part Number: BTC-BTR-39250
Not Yet Reviewed
Estimated Ship Date: Jan 30, 2026 if ordered today
Estimated Ship Date: Jan 30, 2026 if ordered today
BTR LS1 TIMING COVER LIKE 12561243
Part Number: BTC-BTR-61243
Not Yet Reviewed
Estimated Ship Date: Feb 2, 2026 if ordered today
Estimated Ship Date: Feb 2, 2026 if ordered today
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-16
Not Yet Reviewed
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
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
Not Yet Reviewed
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
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
LS Dual Springs, Hyd. Roller,.650 Max Lift @ 160 Lb. seat @ 1.800 Installed, 425 Lb. @ 1.125 Open, 1.020 C.B., 1.304 Dia., 392 Rate, Like PAC 1905 ea.
Part Number: SUM-174010D-1
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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: Today
Estimated Ship Date: Today
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: Today
Estimated Ship Date: Today
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
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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: 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-16
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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: Today
Estimated Ship Date: Today
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
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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: Today
Estimated Ship Date: Today
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Summit Racing™ Valve Springs SUM-174014BP-16
