Found this in Hot Rod 05/2007 page 143.
In the tech support section, someone wanted to make 500hp for his S-10 using a 4.3.
The answer went through a bunch of stuff to get to 340hp then add a 200hp nitrous system. So it CAN be done running on just 6 spark plugs.
But then, a 350/383 would have been cheaper and easier.
From the archives was these two...
Then there was their article on supercharging a 4.3 to 500hp.
http://www.hotrod.com/techarticles/engi ... r_install/
And some general discussion of the 4.3. http://www.hotrod.com/techarticles/engi ... ine_build/
540 HP 4.3 ?
-
Water Boy
Topic author - I sleep in my van
- Posts: 389
- Joined: Sat Sep 09, 2006 8:28 pm
- Location: Canton/Holly Springs GA (Atlanta)
540 HP 4.3 ?
I was told getting my beauty sleep was a waste of time.
1990 Astro (Z motor) mostly original @ 343,584 miles (552,944.8488960001 Canadian) (03/2008). Bad startup puff. Starting to spray for skeeters. Gone 06/07/08.
1993 Astro with a bad W motor. Parked next to a chicken coop in Talking Rock GA
I'm 'tween Canton and Holly Springs (North NorthWest of Atlanta GA)
I haul bottled water everyday- between 500 and 2500 pounds (226.796185 and 1,133.980925 Canadian) INSIDE the van.
1990 Astro (Z motor) mostly original @ 343,584 miles (552,944.8488960001 Canadian) (03/2008). Bad startup puff. Starting to spray for skeeters. Gone 06/07/08.
1993 Astro with a bad W motor. Parked next to a chicken coop in Talking Rock GA
I'm 'tween Canton and Holly Springs (North NorthWest of Atlanta GA)
I haul bottled water everyday- between 500 and 2500 pounds (226.796185 and 1,133.980925 Canadian) INSIDE the van.
Personally, I prefer the Buick 6 but you can do a lot with the Chevy motor
http://www.campbellautomotive.com/1000hpv6.wmv
http://www.syty.net/forums/showthread.p ... light=dyno
http://www.syty.net/forums/showthread.p ... light=dyno
http://img180.imageshack.us/my.php?imag ... 923jo9.jpg
The cool thing is those are all pump gas tunes, if they were running more boost they could pull a lot more power from it if they can hold together. The last one is a very practical combo using a 74mm, cam and vortec heads; the first two use Brodix AL heads.
http://www.campbellautomotive.com/1000hpv6.wmv
http://www.syty.net/forums/showthread.p ... light=dyno
http://www.syty.net/forums/showthread.p ... light=dyno
http://img180.imageshack.us/my.php?imag ... 923jo9.jpg
The cool thing is those are all pump gas tunes, if they were running more boost they could pull a lot more power from it if they can hold together. The last one is a very practical combo using a 74mm, cam and vortec heads; the first two use Brodix AL heads.