I know this has been covered before ive looked.

If the compresor housing is on the tranny side will the 4 bolt side closer to the block or furth from the block compaired to the 5 bolt

 

closer to the block

 

By how much i want to do a GT30r on my D series and right now i have a T3T4 .51 comp and 5 bolt exhaust and it hits.

I was thinking maybe a .75" spacer on the head to manifold?

 

Thats sort of a band-aid, but I imagine it could work. The best solution would be to hack off the turbo flange and weld it at a slight angle to move the turbo out or over a bit.

 

Why not flip the turbo around so the compressor side is on the drivers side? That's the way I have mine with the 4 bolt.

 

buy a new manifold and your problem will be solved.

Some turbo manifolds like drag, were designed around a 5-bolt style exhaust housing.

Others like max-rev, were designed around a 4-bolt style.

I had this problem when I first bought my setup. Even grinding the block would not solve it as I would have to grind too much, so I sold the manifold I had and bought one I knew worked with a 4-bolt exhaust housing.

I think you may know why but the turbos angle differently from the centerline/flange.