I found this turbo on turbochargers.com. It's one of the t3/t4 hybrid turbos. I was wondering if it would work in my 83 280zxt. Here's a link to it

http://turbochargers.com/Turbos/Turb...s/T3-T4-62.htm

 

That last one was a 4" inlet. But, this one is a 3" inlet, so I think this one will fit better with my piping.

 

Here's one i found on Ebay. This one looks better.

http://cgi.ebay.com/ebaymotors/ws/eB...MakeTrack=true

 

Those should bolt up to your manifold. The T3 exhaust side is what bolts up as you know. However, I do not know all the details on what compressor trim is best, ect. You get what you pay for. Some of the larger compressor housings do not fit because the hit the factory exhaust manifold. Those require a half inch spacer under the exhaust side where it bolts to the manifold. This allows the larger compressor to not touch the manifold.

I've heard the hybrids referred to as T3/04 hybrids. I don't know if that is the same as a T3/4B hybrid.