Thank you for providing this forum.

I have limited knowledge about engine identification.

I just acquired a '49 Chevy 3100 in ex cond. The engine and (automatic) trans are newer and the engine runs well, seems to be a very recent rebuild. The numbers on the pad just behind the distributor do not match anything I find on the internet regarding engine ID. Thinking it might be a Crate engine # I emailed them and no, it is not their number.

The number just behind the distributor is CE1A00343. There is a casting clock in the block and I understand that is a Saginaw marking.

I am guessing it is a 250, late 70's due to the EGR? valve on the valve cover.

any help?

thanks!