Adapter plate website.

[Tweek's Turbos]

The already list plates to mate up Caddy V8s to GM or whatever transmissions.

http://www.wilcap.com/cad.html

I found them while searching for Saab ---> GM rwd transmissions.

[spastic_chicken]

THey make awesome kits. I think they are on the expensive side. I wish I knew someone in machining that could make one cheaper. The last time I checked, an adapter kit was like $900

[Morella]

Check the board at 500cid.com.

[BIGEVIL]

Good info.