3.8 Grand national bellhousing bolt pattern

[DeloreanDan]

Hey guys, my name is danny silvia, i want to go under a project an install a 3.8 grand national motor into my delorean.

after countless hours of looking i have stumble upon a forum where they use the transaxles in gt40 replicas. just so happens its the same transaxle as the delorean, they have midplates for the deloreans transaxle ( also known as UN1 ) to mate to everything BUT the 3.8 GN motor

I even found that they have a custom aluminum bellhousing from the UN1 to a small block chevy, thinking it was the 3.8 GN. after many threads of reading i found out they are not the same, an a guy suggested talking to the 60 degrees gurrus! which leads me here!

i figure i am going to have someone make me a midplate to go from the UN1 to the 3.8 GN motor, but i dont have the dimensions of the back of the 3.8 GN

does anyone on here have any idea where i can get the dimensions, or better yet a CAD of the bolt pattern, so i can have someone watercut me a midplate

guys any information would be greatly appreciated, i have been all over this internet an my only problem to completing ( well starting ) is this midplate

any help would be great, thanks!!!

danny

[IsaacHayes]

Well the 3.8 is a 90 degree motor.... LOL

I don't know if the old GN 3.8's have the same patterns as the FWD 3.8's, but the FWD 3.8's have the same pattern as 60degree V6's...

[carbon]

No. The 3.8 is a RWD motor and was one of the last to have the BOP pattern bell housing pattern...

Why not just turbo the 3800, same as every other GM FWD bolt pattern(with the exception of some of the 4 cyl and new global V6s), and save yourself the headache? Or turbo that PRV motor that was in it? From what I hear the PRV motor was just unable to breath with the stock setup.