Well Johnny, you obviously knoow why I went out of my way to use a NV4500-- the low,low 1st, the high, high 5th. I wish I had gotten a later one (the shift effort in 3rd gear is said to be less, and there is a synchro on reverse) but beggars can't be choosers. I have driven a NV4500 quite a bit, though, in a Dodge 3/4 ton truck, and I liked it in that application.
What do you mean by a "4 pass" stock radiator?
vttinkerer