4l80e to 400 turbo

[4x4chevy]

I have a 94 k2500 suburban that the tranny has gone out and its too much to rebuild.I can get a nice built 400 for cheap with a 355 small block too,but i might just stick to the 350 tbi for gas mileage.So the real question is whats need to be changed or replace to thow a 400 turbo in place of my 4l80e tranny?

 

[FastOrange]

I have a 94 k2500 suburban that the tranny has gone out and its too much to rebuild.I can get a nice built 400 for cheap with a 355 small block too,but i might just stick to the 350 tbi for gas mileage.So the real question is whats need to be changed or replace to thow a 400 turbo in place of my 4l80e tranny?

Cross-member
Driveshaft
Driveshaft Yoke (Piece that slides into tranny, i might be using wrong name)
Way to convert Manual Speedo drive to Eletric.

 

[4x4chevy]

Well this guy is selling a 400 sbc borded .30 over with a 400 turbo tranny built for cheap,so thats why i was thinking on going that rount plus my trans is a turd just trying to save some money for the mud truck.

 

[FastOrange]

Well this guy is selling a 400 sbc borded .30 over with a 400 turbo tranny built for cheap,so thats why i was thinking on going that rount plus my trans is a turd just trying to save some money for the mud truck.

IMO, sell the TH400, and find yourself a 4L80E or rebuild yours.

 

[Chris]

You can get a 4L80E from a junkyard for cheap. By cheap I mean less than $500 for one with low miles. Kiss any kind of fuel mileage goodbye with a Th400.

 

[1990GMCSIERRA]

gona bea helluva project,

 

[bggrnchvy]

You'll dump overdrive, but you'll keep the TBI for mileage?

Just rebuild the 80e in your garage. It's not that hard and can be cheap if you just want a stocker build and oyu haven't wasted a ton of hard parts.

 

[1990GMCSIERRA]

4l80e is a great tranny
i wouldnt ditch od for anything

 

[4x4chevy]

I was doing some reading and am thinking maybe i could put a nv4500 in place of the 4l80e ,its has overdrive and i have never seen a 94 suburban with one any suggustins?????