Originally Posted by Dom Mazzetti
why swap in a junk motor
You do realize it's a 350 with two jugs chopped off, right? I'd swap in a 350, but I'd like room to keep accessories and not heat soak everything. There are some things that chevy did with the 4.3 I don't care for (sequential fuel injection, anyone?) but you can fix most of those things with aftermarket stuff. Hell, local auto parts stores have a kit to convert from the sequential fuel to whatever the hell it's called with an injector per cylinder.
The vortec heads are all you really need, plus they've got roller cams. You can easily crank out 300whp with a light cam and some dome top pistons. If you want increased power, you can get dish top pistons and put a remote mount turbo and crank out 600-700hp easy.
Edit: I can understand why some people think gm stuff is crap. The older stuff is. But that's due to ****ty metallurgy in the blocks. If you have an older 350, you want the high nickel block. Late 90's stuff is fantastic, however.