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Discussion Starter #1
Anybody Know anything about casting number 669 350 chevy heads? Basically I wany to know it they are a heavy or light casting. I don't have these heads on hand otherwise I could look for myself and know which they were. They are said to have come off of a Chevy crate motor but I can't find that casting number in any list.
 

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Discussion Starter #3
I know that they normally have six digits in the casting number but most SBC can be I.D.'d by the last three digits, such as 882, 993, 991, 624, ect.
 

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yes but i think you need to take a second look and if you had the rest of the numbers you may be able figure witch # you have wrong in the last 3!
 
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