What size is the turbo?

[BBTurbo]

I am a little confused on what size the turbo is on my 83 T-type. I was led to believe it was a T-3. Would a hybrid T-3/T-4 work? Is it worth the effort? Any help would be helpful. B

 

[Ttype83]

I believe that it's a T-3033,but I'm still upacking my stuff and have not gotten to the turbo info, Check B4Blacks web site he should have it there.