Small block chev numbers

[AlsV8vair]

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

[x Baldwin Motion]

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

[AlsV8vair]

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

thank you

[jbsides]

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...

[x77-69z28]

my 05A 69 z has the 010 block. havent seen an earlier vin with one.

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