Quote:

And no stampings on the oil pan rail.



the casting date tells you it's a thick web block , any 230 block before a certian date , I think it's 10/17/71 ??? is thick web.

There would be no stamps in that location, at least I have never seen it on anything built for the 69 and later model year on a Wedge block.

The VIN stamp you are looking for on the oil pan rail is on the SIDE of the block , pass side , just above the oil pan rail.