A buddy of mine has an engine block and everything needed to build it sitting in his garage except for the pistons and rings. He said that if I bought the pistons and rings and gave him 150 bucks he'd build the motor for me. I trust his motor building skills, but I don't know if I trust an .80 over small block. The motor wouldn't go in a daily driver or anything like that, it'd just go in a mud truck... but .80 over sounds like it might be a little much. Is building the .80 over block worth it, or will it just blow up really quick? Oh, if I did build it, I would get a big-ol' radiator and pusher/puller fans to help keep it cool.