Availability
SBC Alum LSNext 9.450"-4.000 LS Main
Part Number: DRT-31937121
Not Yet Reviewed
Estimated Ship Date: Nov 20, 2025 if ordered today
Estimated Ship Date: Nov 20, 2025 if ordered today
Engine Block, LS Next, Aluminum, 4.125 in. Diameter Bore, 4-Bolt Mains, Chevy, LS, Each
Part Number: DRT-31937211
Not Yet Reviewed
Estimated Ship Date: Nov 20, 2025 if ordered today
Estimated Ship Date: Nov 20, 2025 if ordered today
Engine Block, LS Next, Aluminum, 4.125 in. Diameter Bore, 4-Bolt Mains, Raised Cam, Chevy, LS, Each
Part Number: DRT-31937242
Not Yet Reviewed
Estimated Ship Date: Nov 20, 2025 if ordered today
Estimated Ship Date: Nov 20, 2025 if ordered today
Engine Block, SHP LS Next, Bare Block, 4.000 in Bore, 9.750 Deck, Raised Cam, 4-Bolt Mains, Cast Aluminum, GM LS-Series, Each
Part Number: DRT-31947142
Not Yet Reviewed
Estimated Ship Date: Nov 20, 2025 if ordered today
Estimated Ship Date: Nov 20, 2025 if ordered today
Engine Block, LS Next, Aluminum, 4.125 in. Diameter Bore, 4-Bolt Mains, Skirted, Chevy, LS, Each
Part Number: DRT-31947211
Not Yet Reviewed
Estimated Ship Date: Nov 20, 2025 if ordered today
Estimated Ship Date: Nov 20, 2025 if ordered today
Crate Engine, Short Block, Chevy 372 cu. in., SHP, Steel Crank, I-Beam Rods, Pistons, Rings, Bearings, Each
Part Number: DRT-03113722
Estimated Ship Date: Nov 20, 2025 if ordered today
Estimated Ship Date: Nov 20, 2025 if ordered today
Crate Engine, Short Block, Chevy 400 cu. in., SHP, Steel Crank, I-Beam Rods, Pistons, Rings, Bearings, Each
Part Number: DRT-03114002
Not Yet Reviewed
Estimated Ship Date: Nov 20, 2025 if ordered today
Estimated Ship Date: Nov 20, 2025 if ordered today
Crate Engine, Short Block, Chevy 427 cu. in., SHP, Forged Crank, H-Beam Rods, Dished, Forged Pistons, Rings, Each
Part Number: DRT-03124272DT
Not Yet Reviewed
Estimated Ship Date: Nov 20, 2025 if ordered today
Estimated Ship Date: Nov 20, 2025 if ordered today
Crate Engine, Short Block, Forged Crank, H-Beam Rods, Forged Pistons, Rings, Chevy, Each
Part Number: DRT-03124272FT
Not Yet Reviewed
Estimated Ship Date: Nov 20, 2025 if ordered today
Estimated Ship Date: Nov 20, 2025 if ordered today
Crate Engine, GM 6.2L, 430 HP, LS3 E-Rod, Internal Engine Balance, Aluminum Heads, Each
Part Number: NAL-19421057
Not Yet Reviewed
Crate Engines, Pro Series Chevy 632 C.I.D. 815 HP Fully Dressed Long Block, 10.3L/632, Assembled, Aluminum Cylinder Heads, Chevrolet, 10.3L, Each
Part Number: MLL-PS6320CTCKB
Not Yet Reviewed
Estimated Ship Date: Nov 10, 2025 if ordered today
Estimated Ship Date: Nov 10, 2025 if ordered today
Engine 427 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, TKX Manual Transmission
Part Number: MLL-BLS4273TKX
Not Yet Reviewed
Estimated Ship Date: Nov 10, 2025 if ordered today
Estimated Ship Date: Nov 10, 2025 if ordered today
Engine Block, Aluminum, 4-Bolt Mains, 4.125 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each
Part Number: BRO-8B1050C
Not Yet Reviewed
Estimated Ship Date: Nov 12, 2025 if ordered today
Estimated Ship Date: Nov 12, 2025 if ordered today
Engine Block, Aluminum, 4-Bolt Mains, 4.000 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each
Part Number: BRO-8B1150
Not Yet Reviewed
Estimated Ship Date: Nov 12, 2025 if ordered today
Estimated Ship Date: Nov 12, 2025 if ordered today
Engine Block, Aluminum, 4-Bolt Mains, 4.500 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Big Block, Each
Part Number: BRO-8B2000A
Not Yet Reviewed
Estimated Ship Date: Nov 12, 2025 if ordered today
Estimated Ship Date: Nov 12, 2025 if ordered today
Engine Block, Aluminum, 4-Bolt Mains, 4.500 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Big Block, Each
Part Number: BRO-8B2000C
Not Yet Reviewed
Estimated Ship Date: Nov 12, 2025 if ordered today
Estimated Ship Date: Nov 12, 2025 if ordered today
Engine Block, Aluminum, 4-Bolt Mains, 4.500 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Big Block, Each
Part Number: BRO-8B2200C
Not Yet Reviewed
Estimated Ship Date: Nov 12, 2025 if ordered today
Estimated Ship Date: Nov 12, 2025 if ordered today
Engine Block, Aluminum, 4-Bolt Mains, 4.500 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Big Block, Each
Part Number: BRO-8B5000
Not Yet Reviewed
Estimated Ship Date: Nov 12, 2025 if ordered today
Estimated Ship Date: Nov 12, 2025 if ordered today
Engine Block, Aluminum, 4-Bolt Mains, 4.500 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Big Block, Each
Part Number: BRO-8B5025
Not Yet Reviewed
Estimated Ship Date: Nov 12, 2025 if ordered today
Estimated Ship Date: Nov 12, 2025 if ordered today
Engine Block, Aluminum, 4-Bolt Mains, 4.125 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each
Part Number: BRO-8B1000
Not Yet Reviewed
Estimated Ship Date: Nov 12, 2025 if ordered today
Estimated Ship Date: Nov 12, 2025 if ordered today
Engine Block, Aluminum, 4-Bolt Mains, 4.125 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each
Part Number: BRO-8B1000A
Estimated Ship Date: Nov 12, 2025 if ordered today
Estimated Ship Date: Nov 12, 2025 if ordered today
Engine Block, Aluminum, 4-Bolt Mains, 4.125 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each
Part Number: BRO-8B1000C
Not Yet Reviewed
Estimated Ship Date: Nov 12, 2025 if ordered today
Estimated Ship Date: Nov 12, 2025 if ordered today
Engine Block, Aluminum, 4-Bolt Mains, 4.125 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each
Part Number: BRO-8B1000E
Not Yet Reviewed
Estimated Ship Date: Nov 12, 2025 if ordered today
Estimated Ship Date: Nov 12, 2025 if ordered today
Engine Block, Aluminum, 4-Bolt Mains, 4.125 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each
Part Number: BRO-8B1050A
Not Yet Reviewed
Estimated Ship Date: Nov 12, 2025 if ordered today
Estimated Ship Date: Nov 12, 2025 if ordered today
Engine Block, Aluminum, 4-Bolt Mains, 4.000 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each
Part Number: BRO-8B1150-A
Estimated Ship Date: Nov 12, 2025 if ordered today
Estimated Ship Date: Nov 12, 2025 if ordered today
Modal Header
Call To Order
This is a custom order part. You can order this part by Contacting Us.