Chevy & GMC Vans

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/

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.