[QUOTE=hcompton;1619995] But you cando some crazy mods to the 4.3 v6 it will make a crap load of power with a bunch of different combos. Nascar had to limit theuseof v6 becasue they were going so fast made almost as much power as the v8 but with less weight.
The NASCAR 4.3's where/are the furthest thing from a stock OEM you could get.I bought one at the Indy Drag Racer's auction from RCR racing.They don't compare.
I think it would be useful for the O/P to understand the evolution of the various OEM 4.3's that where offered and see some of the good guy's stock parts. It's a long read,but you might find it is time well spent.
Rebuilding the New Chevy 262: Engine Builder
Hope this helps.................