Chevy BBC 454 B-4.500 Dh-9.800 4-Bolt Billet Main Bare Aluminum Engine Block

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MPN: 1-286-013-01 UPC: 840136560715
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US $2,872.02 US $4,786.70
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Build your dream engine The next level of performance is these aluminum Chevy Big blocks. Block is ready for the street racer or all out racer with added strength and cubic inches. All the factory flaws redesigned to eliminate all problems, still using the original water jacket design. Blocks are cast from highest quality aluminum with extra-thick cylinder sleeves and decks. The blocks webs are stronger and fitted with billet steel 4-bolt billet main caps.


Part Number:1-286-013-01
Part Type:Engines, Bare Blocks
Cylinder Bore Diameter:4.500 in.
Bore & Stroke:4.600 in. x 4.500 in. Max Recommended
Cam Journal OD:Standard BBC
Cam Plug:2.215 in. Dia. Cup Plug
Cylinder Wall Thickness:0.300 in. min @ 4.600 in. Bore
Deck Height:9.800 in.
Deck Thickness:0.600 in. Min
Fuel Pump :Standard Mechanical Provision
Fuel Pump Pushrod:Standard Length
Freeze Plugs:1-5/8 in. Press In Cup Plugs
Lifter Bores:BBC 0.8427-0.8437 in. +.300 (Gen V. VI Style)
Main Bearing Size:STD BBC
Main Bearing Bore:2.937" - 2.938"
Main Cap Bolts:#1 1/2 in. (2) 3/8 in. (2)
#2, 3, 4 1/2" (2) Splayed (2)
#5 1/2" 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:Standard SBC
Oil Filter:Standard SBC
Oil Pan:Standard BBC Gen IV
Rear Main Seal:Std. 2 Piece
Serial No. Location:On front main cap/ Front Passenger Below Deck
Starter:Standard BBC/ Gen IV
Stud Holes, Head:Blind Tapped
Timing Chain/Gears:
Standard BBC Gen IV
Timing Cover:GEN IV
Torque Specs:All 1/2" Bolts - 105ft lbs.
Weight:160 Lbs @ 4.500" in. Bore
Quantity:Sold individually.
Notes:Check hood clearance before installing.
Calculator:CFM Calculator


Ideal for sprint cars, modifieds, late model stock cars, dragsters, unlimited open competition classes, supercharged, turbocharged and nitrous applications! 
Features Include: Ductile iron sleeves and extra thick cylinder walls & decks, 4 bolt splayed mains, enlarged bosses for offset or oversize lifters and scalloped water jacket holes for improved cooling. Siamesed cylinders, dual starter mount bolt patterns for additional starter clearance. Front and rear external oil inlets, crossover and restrictor provisions to simplify plumbing with external pump. Screw in freeze plugs. 
Used in 2000+HP Applications!

Brand Information

Speedmaster has become a leader in its field, built on a long term consistency of being a specialist in aftermarket automotive components. The team has shared all the finest moments in the numerous accolades for its people, its products, and its approach. Speedmaster is also one of the rare companies to produce its own products, where majority items are entirely developed and manufactured in its workshops. The ultimate token of precision, Speedmaster is the world’s only major parts manufacturer to equip cars from Standard replacement to Top Fuel Dragsters.

In 1979, the company was founded with Pete’s Performance, which was a small speed workshop. It began by building engines for customers as a hobby, and it has now grown to include selling, assembling, manufacturing and racing high performance engine parts. Over the years, the company has grown into a worldwide high performance powerhouse. Growing from a one-man bricks-and-mortar business; to now a supply chain in which en

Prop 65 Warning

This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

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