Hey to you,
Just did what you are talking about, I put a 348 chevy big block into a 1949 GMC Panel truck, w/a 350 auto behind it...............about the same?
As for the steering, your truck may be a little different than mine, but the steering in mine was and is still a problem so far. Like you I was asking on here how to fix the steering. I just wanted to try and keep the old style steering in the truck, but not sure if I can yet. Was thinking of relocating the old box to the left with a heavy piece of angle iron, but that will limit the turning to the left a little. I know it can be done if you change the steering column and steering box & drag link hook up. I have seen it before, but must look into it more.
Maybe we can help each other, if you deside to do this.
Ol trucks never die, they just go faster.
Jerry
PS. working on some photo's