Holset knowledge needed

I have a brand new (made 20 years ago) Holset turbo acquired from a diesel shop I've done business with on semi and tractor engines over the years. Basically a gift as its been on a shelf and a pile of dust was on the box. He was just happy to get rid of it.


Holset HX35 no wastegate. The exhaust outlet is an incredibly goofy size. Mocking up an exhaust set up and its not a V clamp nor can i find much in forums about what I need or where to buy it.

Exhaust is ID 2.48 OD is 3.10. Been all over the internet and perhaps I am typing in wrong search terms. I have learned its not a desirable turbo as the exhaust side says 18.5 and slow to spool?

i just want to know if a flange adapter is out there for this thing as welding cast to stainless seems like a folly. It doesn't have the cummins bolt pattern piece on exhaust side just the lip on the exhaust housing. I have a Tial external wastegate to install but i got to get a 3" tube onto the housing to tie to the dump in downstream.

Seem familiar to anyone or am i missing something obvious and being a dumbarse once again

Thanks for any help or insight as I am new to the Turbo world.