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Old 03-23-2012, 01:33 AM
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AlsV8vair AlsV8vair is offline
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Default Small block chev numbers

I have a small block I pulled out of my Corvair . I have the numbers off the back of the block and the heads
Block 3970010
Heads 3890462

thanks

Al
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  #2  
Old 03-25-2012, 12:17 AM
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Default Re: Small block chev numbers

3890462
302/327/350
62-68
1.94/1.50 2.02/1.60
64cc Double hump

3970010
68 - 79 350 & 327
145-375 2&4-Bolt mains/Truck/Hi Perf
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Old 04-14-2012, 03:02 PM
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Default Re: Small block chev numbers

There is a vin number stamped on the block . I will get it off and see what it is.

thank you
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Old 04-15-2012, 01:45 AM
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Default Re: Small block chev numbers

I think there were some (late in the model year) '69 Z/28's that had the 4-bolt main version of the 3970010.

I'm gettin' old, so the memory may not be so hot though...
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Old 04-15-2012, 04:29 AM
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Default Re: Small block chev numbers

my 05A 69 z has the 010 block. havent seen an earlier vin with one.
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  #6  
Old 04-15-2012, 06:39 AM
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Default Re: Small block chev numbers

Early May was about the time they went to the 010 block.
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