9C1 Casting Numbers for Block and Head? - Chevy Impala SS Forum
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post #1 of 3 (permalink) Old 04-17-2001, 04:10 PM
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Hi I was wondering if anyone had one of those
GM Engine Casting number books? I saw this
combination of numbers on an engine and was
wondering if maybe it was a 9C1 block and
heads. If someone has the answer I would
really appreciate it. It's a roller cam engine, with the last three number of the
block being "638"

141010883 Casting number on heads.
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post #2 of 3 (permalink) Old 04-18-2001, 05:23 PM
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www.mortec.com had this:

14093638...350...87-95...2 or 4...Roller or flat tappet cam one-piece rear seal

You will want to check the full code on the block to be sure. Mortec's list is not complete, but pretty thorough. This was the only listing that ended in 638 except some truck motor from the 70's.

post #3 of 3 (permalink) Old 04-18-2001, 09:29 PM
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Thumbs up

Hey, thanks for the help so far, I checked
the block again, and the number matches.
It's a 2 bolt main, roller with no heads.
The two heads I saw there I am guessing
from this block but I am not sure. I checked
out Mortec, but they don't have the head
casting numbers. I've heard of this book,
so I guess I'll check Amazon.com.
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