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pls decode this..

Old Jan 3, 2010 | 01:39 PM
  #1  
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Default pls decode this..

hello, i'm from italy, and i have in my garage these pair of Gm head, casting number 3881482, but i don't know where they come from...
can you decode this number?
thanks.
marco.
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Old Jan 3, 2010 | 02:52 PM
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Are you sure about that casting number?
Maybe 333882?

http://www.thedirtforum.com/castings.htm
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Old Jan 3, 2010 | 03:10 PM
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Originally Posted by Mike Ward
Are you sure about that casting number?
Maybe 333882?

http://www.thedirtforum.com/castings.htm
The number given by the OP does not exist....I have been researching it from the time of his post.

Please re-check the number and or post a photo of same.
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Old Jan 3, 2010 | 08:53 PM
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Are you sure they are from a Chevrolet engine? Small block?
Recheck that number and then go to mortec.com
Terry
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Old Jan 5, 2010 | 03:19 AM
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thanks for answers, but numbers are correct.
3881482
with 1301 on the bottom.

i'm sure it's SBC heads, but i wanna know which valves and cc. are..
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Old Jan 5, 2010 | 09:23 AM
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This number is not listed in any Corvette reference material I have including an old Corvette parts and illustration catelog from 1953-1974.
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Old Jan 5, 2010 | 09:53 AM
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You have to look for it as a "482" head. It is a smallblock Chevy generic smog head with 75cc chambers and 1.72 intake and 1.50 exhaust. By no means a performance head or of any value.
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Old Jan 5, 2010 | 02:13 PM
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Great Stuff!
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Old Jan 6, 2010 | 02:14 PM
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thanks for answers, do you think this heads can be better than 1980 L48 stock heads?
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Old Jan 6, 2010 | 02:29 PM
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No. The L-48 head is better. Valve size is larger on the L-48 head at 1.94" intake, 1.50" exhaust.
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Old Jan 6, 2010 | 02:32 PM
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oh, ok.
thanks again..
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