I like this thread alot. Learning quite a bit. Sounds like something I would post myself. I also have a '62 SS 409 which gives new meaning to the word clone. The previous owner did a terrific job making it a SS tribute car. I put what was told to me, a '63 409/340 in it. I bought it as a short block and took it to the machine shop. Had it rebuilt. Bored .030 over so had to order new pistons to fit. Because of the new bore, I'm assuming it had to be a 409 block to begin with. I wish I had gotten the casting numbers off of the block while it was out, but I didn't. It's not too late. I just have to get it on the lift. Going to take a look at the block stamped number soon. Never realized it at the time of purchase, but this motor came with a solid cam and lifters. Has me wondering if the motor is a factory 400 or 425 hp that I think would come with a solid cam and lifters. Or, did someone put it in?? This should be interesting. Should also add, that the previous owner also changed the color from Anniversary Gold to Honduras maroon. I like the gold and would change it back except I did a real nice job painting the firewall when the motor was out and I'm not doing that again. This car has all original body panels, fenders, doors, pans and is in great shape. Began it's life in Montgomery, Alabama, where it stayed until I bought it. A guy keeps wanting to buy it, but thus far, I haven't caved in. I know what the car is and have never made any bones about it. I know what the value of it is to me and would never let it go for less. I'd let my the kids fight over it first. Sorry 1962 Impala. I didn't mean to hijack your thread some. It's just that I have something similar and thought I could add to it. Best wishes with whatever you decide to do, Carmine.