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Discussion Starter · #1 ·
The back of the block has the casting number 3737739 and the front pad has stamped F3I7DB.

The heads have a casting number 3748770 with the x58 on the outside between the exhaust manifold. I think these are 58 Corvette Dual Quad heads/ 4 Barrel. I don't think the heads match the block.

Thanks in advance for your help.
 

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Casting number 3737739 is a 57-59 283, casting number 3748770 are 57-62 283.

DB 1958 283 Powerglide 230 HP 4 barrel carb


What is the valve cover bolt pattern, Staggered or straight across? What are the casting dates on the block & heads?
 

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Discussion Starter · #3 ·
Casting number 3737739 is a 57-59 283, casting number 3748770 are 57-62 283.

DB 1958 283 Powerglide 230 HP 4 barrel carb


What is the valve cover bolt pattern, Staggered or straight across? What are the casting dates on the block & heads?

The pattern is staggered. one head says B 58 with 13 below. The other head says L 197 with 13 below that number. i am not sure where the block casting number is located. still looking for it though.
 

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I concur with Bruce's findings......

Block...... 1958 283 230 HP...... 4bbl carb, powerglide transmission

Heads...... 1957 - 1962 283 with 1.72" intake & 1.50" exhaust valves

Looks like you've got a '58 4bbl engine there. Good find! What are your plans for it?

Happy Motoring,

Harry
 

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Discussion Starter · #5 ·
I concur with Bruce's findings......

Block...... 1958 283 230 HP...... 4bbl carb, powerglide transmission

Heads...... 1957 - 1962 283 with 1.72" intake & 1.50" exhaust valves

Looks like you've got a '58 4bbl engine there. Good find! What are your plans for it?

Happy Motoring,

Harry

No plans for the motor at this time. I bought two cars last summer one 56 and one 58 chevy (both 4 doors) for 400.00 each. I pulled the motor out of the 58 and then sold it for 400.00
 

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Discussion Starter · #6 ·
Casting number 3737739 is a 57-59 283, casting number 3748770 are 57-62 283.

DB 1958 283 Powerglide 230 HP 4 barrel carb


What is the valve cover bolt pattern, Staggered or straight across? What are the casting dates on the block & heads?

The date code on the back of the engine block is C128.
 
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