Huh...oh well, I'm kinda comitted now at any rate, durability is great, but lighter would be better. Oh well! I know lots put in tracker engines, hell...grand vitara and XL7 2.7L V6s are becoming popular as well...but the zuk V6s are 2000+ so expensive, and the earlier tracker engines give 20hp for the "bolt-on model" (TBI 1.6L), and 60hp more for the MPFI 1.6L. Not so much enough to turn 38s
I almost knew I should have gone for a 350/SM465/NP231 combo although that would have been more expensive as well.
As for the 4.3, I didn't use it partly b/c I was misled, and partly b/c I wanted to try something new...although I do seem to get a lot of crap from zuk guys for doing it...Why would you recommend it over the 3.0 just out of curiosity?
If this swap doesn't perform the way I want it to, I will probably most definately upgrade to a chevy V8. Maybe in a few years the aluminum block 5.3s willbe more readily available and less expensive