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Old 09-11-2011, 08:57 PM
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Engine id help

i have a 350 sbc that i need help with the id or if someone can point me to a source casting # 3970010 from frt engine pad v0422c11 below it 17c167818.It does have the 882 heads.Thanks for the help.

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Old 09-11-2011, 09:29 PM
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Nothing to major, I think it covers about 1974-1982 with 76cc low compression heads. No power house for sure. Pretty much the normal engine used in cars and trucks, some are machined for 4 bolt mains but you will only know if you pull the pan.
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Old 09-11-2011, 10:01 PM
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I have always heard the 010 blocks were all 4 inch bore, never seen one that wasn't.
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Old 09-11-2011, 10:05 PM
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That is a 4.00 inch bore, 327/350 are the same bore, different stroke.
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Old 09-11-2011, 10:10 PM
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What year is the block?
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Old 09-11-2011, 10:20 PM
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Go to the back of block on the oposite side of casting #, so pass side and will find a code such as B9/9. which as an example be b is fir month so Feb then 9 is day and 2nd 9 would be year, so B/9/9 is Feb 9th of 1979. But that can some times fool you as in some cases could be Feb9th of 89 so that is where head # and date also cast into oposite side of cyl head accross from head casting # come in handy. Most 3970010 blocks cover quite a few years but only as I listed so can be narrowed down, but most casting # from Gm only cover a couple of years, yours just happens to be one of the only that stretchs it out. So take the date code off cyl head and decode it the same way and you can narrow it down.
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Old 09-11-2011, 10:29 PM
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You need the block date too what if the heads had been changed. If the block date is the same it's a 350 if it's older might be a 327. Let us know.
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Old 09-11-2011, 11:04 PM
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Did some more checking 3970010 for 68 only is a 327 which could be verified with a crank casting # or 3970010 from 69-79 is 350 only. The date code can still be screwy on that on if it ends in an 8 then could be 68/327 or could be 78/ 350, so hope it isn't ending in an 8.
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Old 09-11-2011, 11:15 PM
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Cool and you can look at the way the end of the crank is shaped.
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Old 09-11-2011, 11:21 PM
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You need a casting # off the crank if needed but I think all the ends are shaped the same until one piece seal time around 1985.
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Old 09-11-2011, 11:31 PM
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No they are different for the old blocks cranks
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Old 09-11-2011, 11:36 PM
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What do you mean by old block cranks, I thought we were on old blocks. It is not a 283 but 327/350 which are all the same until one piece seal time.
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Old 09-11-2011, 11:49 PM
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That's what I mean old before 79 they all look different I wish I could post pics so you can see on this dumb a** phone
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Old 09-11-2011, 11:55 PM
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Man I have to talk to you on one thread at a time. I just went to a few sites and they showed the same crank flanges till 84, so not sure what you mean. Oh well let me know if you have a pic or 2, going to bed as have to work in a few hours. Later man.
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Old 09-12-2011, 12:17 AM
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Ok cool if anything i can send though cell pics but it would have to be just us don't want my number all out here
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