Just a follow thru on this thread. I just replaced my engine with a remanufactured long block from gearhead motors. Everything went great as far as ordering, service, ect. I ordered it late on a Friday and received the block on the following Monday morning!
Installed the engine, called to send the block core back to them at lunch time, they said they would pick it up later that day, or the next for sure. Warranty is Three years and (I think) unlimited miles, I just can't recall right now. Anyway, I was/am very happy with what I got from them, but I have only put 80 miles on the engine so far.