87 Chevy B-60 Bus

[jaredg]

Hi All,
I am taking on a rather strange restoration/conversion project. I had found my old bus from childhood a few years back. Its a 1987 Chevy B-60 Wayne 54pass with a 366 Holley 4bl/Allison AT545 trans. I just recently completed a nice 30x50 pole building to house my project in. The first thing I am investigating is perhaps an upgrade in power train. I want to take this thing on road trips and currently the 366 is frying its brains out trying to go 50 on the highway. I assume the 6.83 rear end isnt helping any. I also suspect the 366 is a little worn out and so I want to consider either a new 366 engine or perhaps a 427 and of course get lower rear gears.

If I am going to get a new engine would it be worth it to bump up to a 427? Perhaps Fuel Injected? Would there be any noticeable power advantage?

I have tons of other questions and will post pics of the build in due time.

Thanks so much for reading.
Jared