I actually took the time to measure the engine bay tonight and I don't think I'll have an issue. My main concern was losing floor space because of the bell housing, but I don't think it'll be much of an issue now that I've actually measured the engine AND the car for comparison.

I might have to move the radiator forward a couple inches, but I'm pretty sure I can set the engine just off the firewall and not have to sacrifice much of the toe board to accommodate the 4L60e.