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Chevy t 02-21-2013 08:42 AM

casting #
I just picked up a engine this weekend but i can't find any info on the block # stamped on the back. # is GM 3370014 anybody have an idea what it's out of???

camaro71633 02-21-2013 09:33 AM

The number is likely 3970014, its a 68-79 350. Need the suffix code from in front of the pass cyl head to know what it was in originally.

hcompton 02-21-2013 09:49 AM

camaro block for 69 to 70 also used in some trucks and cars. Good chance its a four bolt main block. I have one in my garage right now that is four bolt from a camaro.

I also think this a good block as far as rebuilding goes i would use it for sure. I find a lot of the 010 blocks are four bolt mains but its all a crap shoot until you pull the pan and check the mains and crank numbers. then you can tell for sure what it came from.

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