Thanks for all your help! I didn't expect such a big response so soon! *EDIT* @Enzo: You say it's been done before, but is this using a 4E or 5E? Excuse my n00bishness, but I have no idea if the dimensions are wildly different. SiCaln says the block's taller, but I don't want half the engine poking out of the bonnet! Can you fit a 5E into a Mini, bonnet shut and all that jazz?