Q: 400 Engine Block Code for 1967
I’m trying to decipher a code cast into the block on my 1967 firebird. The code is located near to where the distributor fits into the block. I think it is the cast date of the block but I would like to know for sure. The code is 86133. (As best as I can tell).
I know this isn’t the sequential build number, (serial number), of the block since that is locate on the front on the block on the passenger side of the car.
I’d appreciate any information you can provide.
A: That is the blank block casting number. It’s like a part number. According to my info the whole number is 9786133. This denotes a 1967 400 cid block. I got the info from a book called Pontiac Muscle car performance 1955-1979 by Pete McCarthy
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Content last modified: January 24, 2014 at 9:41 pm