I recently came across a pic/ article about a rv single turbo set up for big block motorhomes and obviously wanted one for the 88 shortbox im doing, has anyone found or know of any forsale??? any leads or info would be great!

thanks

What are you building the truck for? Street rod or tow rig? If a tow rig, imo you'd be better off with some upgraded pistons than a turbo. The 440 should already have ample torq for towing. A decent compression ratio would help get the efficiency up.

The only thing worth using is the exhaust manifold with a big turbo and blow through setup.
That is my plan, but not for towing. I found a rv turbo exhaust manifold on ebay oem never used for $300.
It has a t4 flange.
Parts from this kit don't come up as often as they used to.