Borg Warner 171702 or 177287 on a 14L Detroit???

That's basically a 177287

 

Sure have. Its basically just a more robust s400. Bigger shaft and bearings . I think they came out with the s430x for the class 8 truck market. Not really any more performance as your 177287 .

 

The price is higher because the s430 is newer more robust design. The compressor wheel is also a forged milled wheel over the cast units in the older design. The profiles on the wheel is also a better more efficient design. Your paying for more research and development.
The 171702 is basically a Borg box replacement for many different applications. Been around a long time.

 

I told you earlier in my original post what I'd recommend. 78mm s430sx with the 1.45 housing. Worked great on my 14L and I dynoed 650 rwhp with that turbo. Never got hot.

But I'm sure someone else will come along with a different opinion

 

This is what I'd recommend. But a 1.45 housing with it. Shop around. It will work fine stock also. Your jake will not be as effective as stock thou.