[Martin64]

The motor is running...runs great! A little tempermental when starting it for the 1st time of the day, but warms up good and idles like a champ, no oil smoke. Of course I'm sure, not knowing the history, that could all change with the turn of the ignition key. The other casting numbers that are further back on the block toward the firewall do indicate that it's Chevy either/or 230/250 and nothing special fromwhat I've found on the other websites.

But, thanks for your help! I'm learning more details about this truck everyday.