I would guess that the LS V8 engines do not use the same pattern. The starter location on the 4200 is too high for a V8. I may be wrong! If you are looking for a bolt-on manual transmission bellhousing, I used a 5-speed from a Colorado Pick-up.
Also if you're looking for someone to manufacture a bellhousing... there is a company that casts their own. It's called QUAD4RODS, they make one to install a Quad 4 in a RWD. You can use a T5, T10, Muncie. I plan on installing a Quad 4 in a (Che)Vette. Maybe with enough interest, these guys will make one for the 4200.
Jonas
