Trying to identify engine

[Reinhardt H.]

I have a 67 corvette with a small block that has a GM casting number of 3782870 and is stamped with F1105SB on th epad on the front of the block. I am not sure but believe it means F=Flint and 105 means November 5th. But I do not know what the "SB" stands for. Also has was appears to be a hand stamped number of "13580 3". I say hand stamped as it is not uniform or online. Any ideas?
Thanks

[Jim D.]

Re: Trying to identify engine

"SB" indicates a 1962 327, 300HP, from a full size Chevrolet with a Powerglide. "13580 3" is probably the identifier from a machine shop during a rebuild.

[Tom B.]

Re: Trying to identify engine

The 870 casting is a 327 and the SB labels it as a 300 horse Powerglide out of a '63 or '64 full size passenger car.

Tom

[Reinhardt H.]

Re: Trying to identify engine

Thanks Jim-- i also found another reference that said the same thing that you did. Now I just have to figure out how a 1962 motor got into the 67. Runs great and fun to drive so I can't complain. Thanks again.

[Reinhardt H.]

Re: Trying to identify engine

Thanks Tom