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  • Chevy SBC 350 B-4.000 DH-9.025 4-Bolt Billet Main Bare Aluminum Engine Block

Chevy SBC 350 B-4.000 DH-9.025 4-Bolt Billet Main Bare Aluminum Engine Block

SKU: 1-286-014-01

If your standard Bowtie block could handle 1000+ HP it would be Speedmaster's AH1 engine block. Design from the ground up based upon your favourite bowtie block with the ability to handle naturally aspirated, supercharged, turbocharged and nitrous applications.

Out of Stock


Part Number:1-286-014-01
Part Type:Engines, Bare Blocks
Block Material:A-356 Aluminum
Cylinder Bore Diameter:4.000 in.
Bore & Stroke:4.155 in. x 4.000 in. Max Recommended
Cam Journal OD:Standard SBC - 1.869
Cam Plug:2.375 in. Dia. Cup Plug
Cylinder Wall Thickness:0.275 in. min @ 4.155 in. Bore
Deck Height:9.025 in.
Deck Thickness:0.675 in. Min
Fuel Pump :Electric Only
Fuel Pump Pushrod:n/a
Freeze Plugs:10 x 1-5/8 in. Press In Cup Plugs
Lifter Bores:SBC 0.8427-0.8437 in.
Main Bearing Size: 2.450 in. (SBC 350)
Main Bearing Bore:2.649 in. (SBC 350)
Main Cap Bolts:#1 7/16 in. (2) 3/8 in. (2)
#2, 3, 4 7/16 (2) Splayed (2)
#5 7/16 in. (2) 3/8 in. (2)
Main Cap Press:0.005 in.
Main Caps:All 5 Billet Steel. 3 Center Caps Splayed
Main Cap Register:Deep Stepped Register (No Need for Dowels)
Oil System:Wet Sump - Main Priority Oiling (Can Use Dry Sump)
Oil Pump Shaft:350 0.481 in. OD - Standard
Oil Filter:SBC, Uses 2 Bolt Adapter
Oil Pan:Standard 350 SBC
Rear Main Seal:Standard 350 SBC - 2pc
Serial No. Location:n/a
Starter:Dual Bolt Pattern
Stud Holes, Head:Blind Holes
Timing Chain/Gears:Standard SBC Components
Timing Cover:Standard Cam Location SBC
Torque Specs:1 - 5 7/16 in. Bolts 65 ft. lbs.
1 & 5 3/8 in. Bolts - 35 ft. lbs.
Weight:110 Lbs @ 4.0 in. Bore
Quantity:Sold individually.
Notes:Check hood clearance before installing.
Calculator:CFM Calculator