I'm assuming, of course, that they don't already fit...I have a line on some at a wrecker, could probably be had for cheap. I think if I were to pull the manifolds off, and then kinda try to bold a manifold to a header, and use heat to bend appropriately. IOW, put the two "gasket" sides together, and then use heat and bend to make fit correctly. Has anyone ever done this?

 

Honest, I'm being real, it will not work as well as you would like it to.
Honest.
Like an In-Line 6 Cylinder compared to a 2.8 Six Cylinder, just the number of pistons are the same.
It is that different.

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Chat Soon,
KED85
Karl
1985 Firebird 2.8 to 3.4 swap project for Smog Happy LA, CA

 

How? There are three exhaust ports on 2.8, and 3 on the 4.3. Shouldn't be too hard to bend them to different spacings, IMHO. Just getting some opinions here, though, so thanks for yours ;-) The only problem I could think of is the exhaust ports themselves being larger than the header holes, in which case, problems would be occurring.

 

Trying to get 4.3 headers to fit would be about the same as nailing jello to a tree.

No way are they going to fit, not with a torch and not just heating them.

 

dude

get some 3.4 headers there are a few companies that make them



the main reason your idea will not work is because the 4.3 is essentially a 350 with 2 cylinders knocked off

 

Not to mention that since the bore of a 4.3 is 4" and the 2.8 is 3.5", the cylinders of the 4.3 are more widely spaced which means that the block is longer, which means that the heads are longer than the 2.8. "Nailing jelly to a tree" is a great analogy!

 

LMAO! Damn, 87RS, now my coworkers are probably wondering what on the screen made me laugh out loud...


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

 

I feel real sorry for you guy look for header for the 2.8. I found headers after searching for a year, they are hedmans #68430 call them and maybe they can locate some for you.


Robert

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Chevy 2.8L, k&n filter lid, Headers Soon!!!

 

Tom, I didn't want to tell they poor guy he'd have better luck trying to milk a bull.

 

well I just bought a set of hedman 2210...there supposed to be for 3.1/2.8 camaros... Hedman super comp #2210....50 bucks on an auction....it pays to search them out...took 6 different sites though...