There's some talk about GM 3.8 Series II (L36), Aurora 4.0 (L47), and Northstar (L37) swaps.

I ran across it here.

Then I got to thinking, what about a whole front cut from a GTP, SSEI, or a Regal GS? The L67 model, supercharged, 3.8 Series II.

I dunno if it's doable, but it is supposed to be able to retain the stock transmission, with the exception of swapping out bellhousings from a '91 Rodeo.

If that's the case, any of those motors is a lot easier to find parts for and replace cheaply than a 6VE1.

Just my 2 cents.