Availability
Crankshaft, Pro LS, 4340 Forged Steel, 4 in. Stroke, 24X Reluctor, Lightened Rod Journals, Gun-drilled Mains, Internal balanced, LS1, Each
Part Number: SUM-180LS400024X
Estimated Ship Date: Monday 6/9/2025
Estimated Ship Date: Monday 6/9/2025
Big Block Chevy Cylinder head, Aluminum, 335cc Rectangle Intake Runner, 122cc Chamber, 2.250 Intake Valve 1.880 Exhaust Valve, Max .725 Lift Ea.
Part Number: SUM-162BBCREC335
Not Yet Reviewed
Estimated Ship Date: Monday 6/9/2025
Estimated Ship Date: Monday 6/9/2025
Chevy LS Cylinder head, 255cc Rectangle port Intake Runner, 67cc Chamber, 2.16 Intake Valve 1.6 Exhaust Valve, 4.000 + bore sizes, Max .650 Lift, Each
Part Number: SUM-162LS3255REC
Not Yet Reviewed
Estimated Ship Date: Monday 6/9/2025
Estimated Ship Date: Monday 6/9/2025
Pro LS 4340 Forged Steel Crank, 3.622 Stroke, 24X Reluctor, Lightened Rod Journals and Gun-drilled Mains, Std. 6-bolt Flange, Internal balanced, LS1
Part Number: SUM-180LS362224X
Estimated Ship Date: Monday 6/9/2025
Estimated Ship Date: Monday 6/9/2025
Pro LS 4340 Forged Steel Crank, 3.622 Stroke, 58X Reluctor, Lightened Rod Journals and Gun-drilled Mains, Std. 6-bolt Flange, Internal balanced, LS3
Part Number: SUM-180LS362258X
Estimated Ship Date: Monday 6/9/2025
Estimated Ship Date: Monday 6/9/2025
Pro LS 4340 Forged Steel Crank, 4.000 Stroke, 58X Reluctor, Lightened Rod Journals and Gun-drilled Mains, Std. 6-bolt Flange, Internal balanced, LS3
Part Number: SUM-180LS400058X
Estimated Ship Date: Monday 6/9/2025
Estimated Ship Date: Monday 6/9/2025
Cam and Lifter kit, Pro SBC Retrofit Stage 2 Hyd.Roller LS Firing Order, 218/227 Dur., 110 LSA + 1 Adv, .525/.520 1.5 Ratio, 1800-6250 RPM Range
Part Number: SUM-K1222
Estimated Ship Date: Monday 6/9/2025
Estimated Ship Date: Monday 6/9/2025
Cam and Lifter kit, Pro SBC Retrofit Stage 5 Hyd. Roller LS Firing Order, 242/251 Dur., 110 LSA + 4 Adv, .550/.550 1.5 Ratio, 2600-6600 RPM Range
Part Number: SUM-K1225
Not Yet Reviewed
Estimated Ship Date: Monday 6/9/2025
Estimated Ship Date: Monday 6/9/2025
Gen. 4 BB Chevy Forged Steel Crank, 4.250 stroke, Two Piece Rear Seal, Req's Narrowed Rod Bearings, Lightened holes, Nitride, 6.385 in. Rod
Part Number: SUM-BBC425063851
Estimated Ship Date: Monday 6/9/2025
Estimated Ship Date: Monday 6/9/2025
SB Chevy Forged Steel Crank, 3.750 Stroke, 1967-86 Blocks with 2-pc. RMS, Lightened, Nitride, Lightened and Bullnosed, Designed for 6.000 in. Rod
Part Number: SUM-SBC35037502P
Estimated Ship Date: Monday 6/9/2025
Estimated Ship Date: Monday 6/9/2025
Forged Pro Ford Mod Motor 4340 Forged Steel H-Beam Connecting Rod, 5.933 in. Length, .866 Floating Pin, ARP 8740 12 pt. Bolts, Set of 8
Part Number: SUM-MOD59332H
Not Yet Reviewed
Estimated Ship Date: Monday 6/9/2025
Estimated Ship Date: Monday 6/9/2025
Chevy LS 4340 Forged Steel Crankshaft, 4.000 stroke, 24X Reluctor, Lightened, Nitride Hardened, Narrowed Rod Bearings Req.
Part Number: SUM-180LS400024
Estimated Ship Date: Monday 6/9/2025
Estimated Ship Date: Monday 6/9/2025
Forged Pro BB Chevy 4340 Forged Steel H-Beam Connecting Rods, 6.385 in. Length, .990 Floating Pin, ARP L19 260K PSI 7/16 in. 12 pt. Bolts, Set of 8
Part Number: SUM-BBC638519H
Estimated Ship Date: Monday 6/9/2025
Estimated Ship Date: Monday 6/9/2025
Cam and Lifter kit, Pro SBC Retrofit Stage 6 Hyd. Roller LS Firing Order, 248/256 Dur., 110 LSA + 2 Adv, .550/.550 1.5 Ratio, 3000-7000 RPM Range
Part Number: SUM-K1226
Not Yet Reviewed
Estimated Ship Date: Monday 6/9/2025
Estimated Ship Date: Monday 6/9/2025
Forged Pro Ford Mod Motor 4340 Forged Steel H-Beam Connecting Rod, 6.652 in. Length, .866 Floating Pin, ARP 2000 12 pt. Bolts, Set of 8
Part Number: SUM-MOD66572H
Not Yet Reviewed
Estimated Ship Date: Monday 6/9/2025
Estimated Ship Date: Monday 6/9/2025
SBF 351 Windsor 4340 Forged steel crank, 4.000 in. stroke, 6.200 rod, Nitride Hardened, Internal Balance, Req. Narrowed Rod bearings
Part Number: SUM-SBF351W4000I
Estimated Ship Date: Monday 6/9/2025
Estimated Ship Date: Monday 6/9/2025
Forged Pro pistons BB Chevy 540, 4.5 bore, 1.120 C.H., 4.25 in. stroke, 6.535 rod, 8cc Dome 10.6@110cc, 10.2@114cc, 10:1@119cc.
Part Number: SUM-BBC540STD8L
Not Yet Reviewed
Estimated Ship Date: Monday 6/9/2025
Estimated Ship Date: Monday 6/9/2025
Cam and Lifter kit, Pro SBC Retrofit Stage 1 Hyd. Roller LS Firing Order,212/218 Dur., 110 LSA + 2 Adv, .525/.520 1.5 Ratio, 1500-6000 Range
Part Number: SUM-K1221
Not Yet Reviewed
Estimated Ship Date: Monday 6/9/2025
Estimated Ship Date: Monday 6/9/2025
Engine Kit, Crank, Flat-Top Piston/Moly Ring, Rod, Main, Gaskets, Oil Pump, Timing Set, Chevy, 355, Kit
Part Number: SES-3483006050
Not Yet Reviewed
Cannot be shipped Internationally
Cannot be shipped Internationally
SB Ford Windsor 4340 Forged Steel crank, 3.400 stroke, 5.400 in. Rod, 28 oz. Balancer , Req's Narrowed Rod Bearings, one or two piece rear seal
Part Number: SUM-SBF3023400
Estimated Ship Date: Monday 6/9/2025
Estimated Ship Date: Monday 6/9/2025
Summit 4340 Forged Crankshaft, SBF Windsor, 3.000 in Stroke, 28 oz. Balancer, Narrowed Rod Bearings, 1.375 Pilot Bearing, Designed for 5.090 in. Rod
Part Number: SUM-SBF3023000E
Not Yet Reviewed
Estimated Ship Date: Monday 6/9/2025
Estimated Ship Date: Monday 6/9/2025
Forged Pro Mopar BB 4340 Forged Steel H-Beam Connecting Rod, 6.760 in. Length, .990 Floating Pin, 8740 7/16 in. 12 pt. Bolts, Set of 8
Part Number: SUM-MOP676099
Not Yet Reviewed
Estimated Ship Date: Monday 6/9/2025
Estimated Ship Date: Monday 6/9/2025
SB Chevy Forged Steel crankshaft, 4.000 Stroke, 400 Mains, 2 Piece Rear Seal, Req. Narrowed Rod Bearings, Lightened, Nitride, 6.000 in. Rod
Part Number: SUM-SBC4004000
Estimated Ship Date: Monday 6/9/2025
Estimated Ship Date: Monday 6/9/2025
Camshaft Kit, Pro LS, Hydraulic Roller Tappet, Advertised Duration 280/292, Lift .600/.600, Chevy GM, LS/LSX, Gen III/IV, Kit
Part Number: SUM-8708-2-DLTI
Not Yet Reviewed
Cannot be shipped Internationally
Cannot be shipped Internationally
Forged Pro BB Chevy 4340 Forged Steel H-Beam Connecting Rods, 6.135 in. Length, .990 Floating Pin, ARP L19 260K PSI 7/16 in. 12 pt. Bolts, Set of 8
Part Number: SUM-BBC613519H
Not Yet Reviewed
Estimated Ship Date: Monday 6/9/2025
Estimated Ship Date: Monday 6/9/2025
Modal Header
Call To Order
This is a custom order part. You can order this part by Contacting Us.