Wouldn't take but a weekend to swap in a big block. Just happen to have a few laying around begging to go in. Believe me, it crosses my mind every day. Only problem is, I've hopp'd up almost every one of my cars and this is one of the few I can take for a long drive, get 20 + MPG, and drive anywhere. If I want burn outs,,,,,I take one of the others in the stable.