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1-800-345-4545
Chevy SBC 350 B-3.970 Dh-9.040 Unf Billet Main Severe Duty Iron Engine Block
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- Small Block Chevy
- 4-Bolt Main Iron Engine Block
- Unfinished
- Cylinder Bore: 3.970 in
- Deck Height: 9.025 in
- 4.185 in. x 4.000 in. Max Recommended Bore/Stroke
- All Billet Main Caps
Severe Duty Small Block Chevy Engine Block
Build your dream engine
The next level of performance is these cast iron Chevy small blocks.
Designed to look standard under your bonnet, and work with stock components.
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 water jacket design.
Blocks are cast from highest quality high-density iron with extra-thick cylinder walls and decks.
The blocks webs are stronger and fitted with billet steel 4-bolt main caps.
Ideal for for supercharged, turbocharged and nitrous applications!
Features Include: Extra thick cylinder walls & decks, 4 bolt splayed mains, enlarged bosses for offset or oversize lifters;and scalloped water jacket holes for improved cooling.
Used in 1500+HP Applications!
Severe duty blocks have the following specs:
