I got the whole thing in my garage. As soon as I find my reading glasses I'll see if I can find any numbers on the block. I stopped by a guy who is a Mopar nut and he said he's 90% sure it's a 383. Great day to pick up a car......windy, raining, and 35 degrees. Stovebolt on one side and mopar on the other. Who could ask for anything more?