All 4.3L V6 engines in the S-trucks are Vortec engines. Its the way the heads are designed. Chevy didn't start producing the latest and greatest VERSION of the Vortec design until '96.

Your '94 block will work fine, however you will need to use your '96 heads and intake manifold. GM did change the angle of the intake manifold bolts into the heads in '95 or so.

Also since you ahve a '94 it should have roller, and it may or may not have a balance shaft. More then likely does, look for it under the intake manifold. GM started putting them in the 4.3 in '93.

Here is a better article with more information.
http://www.babcox.com/editorial/ar/ar39840.htm

 

i got the motor finaly pulled, its on its way to get rebuilt.

 

cool, keep us up to date on teh progress.


by hte way, where are the pics.

 

i tried to get picsbut it keeps saying files are to large, what do i do?

 

resize the pic and make it smaller... paint, photoshop... there are several ways

 

i resized them and it still wont work for me, whats the deal?


EDIT: okay i added the pics to my photo album. heres the link https://blazerforum.com/albumphoto.a...=1&apage=1

 

Good luck to you with your rebuild and man youve got a nice GTP. I was gonna get one but decided on a blazer instead because I do a lot of camping and tonnes of fishing, plus a blazer is better with the little one too.