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hi everyone...
I need to find out this engine specs that I just got. These are my casting numbers: 34R178608. The guy that I got it from said that its an Olds 350 from early 1970's. I was searching on previous postings and followed some recommendations of different places with information to come up with the specs, but with no luck. thank you
 

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I get nothing on anything in the entire GM line with those numbers. That looks more like a VIN number stamped on a block than a casting number. Do a search on the web for Oldsmobile casting number locations.
 
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