[gordon]

I'd agree with Lang.

Having owned both the straight 6 and V8, but in slightly different applications, I'd go for the 6 every time for simplicity, ease of access, etc, etc. The guy who designed that V8 and put water pump bolts through the housing, then decided to use water pumps as engine mounts - will never get a Christmas card from me.

That said, check both to see if they have original engines. Many of the sixes were replaced with later versions of the same thing, or Bedford engines, or whatever. Happened to the V8's as well, so best bet would be to go for the balance of most original truck offered and best price.

If everything else was absolutely equal - straight 6 every time for simplicity, access, maintenance, and costs.

Gordon