If you can't sell them....

[latemodelnewbee]

aren't the late model header still like 6 bills, and the air flow charts that i found on this site says that the older heads flow better on both intake and exhaust sides

[dohcfiend]

if you haven't done any headwork to the heads you have, you can always switch to 96-97 heads and buy the 96-97 headers. they fit well. I guinea-pigged them on my 94 gtp for a decent discount.

if you have done headwork, you could try buying a set of 96-97 headers, remove the flanges and weld up a set of 91-95 flanges but it would be costly.

there is also a company on ebay somewhere that used to sell 96-97 flanges for around $35. i do not believe there are any 91-95 flanges available.

another thing you should try is to post on the fiero forums as there is a lq1 following over there and SOME of them will actually spend money to get parts made. aside from that, some1 may have already made a set of 91-95 headers. while they may or maynot fit your car, you could probably get a set of flanges cheap.

although i see no personal benefits to this, i am however excited to see some1 get parts made whether they benefit me or not. I hope you succeed.

[toms92gp]

I would be interested in a set, but it would be quite some time before I had the finances. Next batch of money I get will be going to head work and new timing belt stuff. I'd have to see how much money I'll have left from tax return after I do my other work. I Think it would be a great Idea though. I've always wanted headers.

[OldSkoolGP]

Everything I'm hearing sounds good. Primary size is what I would have used and flanges sound thick enough. From the cat back you want 2 1/2". When I was going to design a set of headers I was going to combine them from a dual 2 1/4" to 3" collector, then come down to a cat or nothing if you can get away with it and go out to 2 1/2". All the math I've done says 2 1/2" is good for 300HP NA, but that initial collection site should be 3" to help with turbulance and reversion. Yeah, talk to him, but so far it sounds good and like I said I'll invest in a jig or whatever.

[latemodelnewbee]

I will talk to him maybe tomorrow about the jig. He said he would use 3/8" flanges, I was thinking 1 5/8 primaries and connection would be similar to pacesetter w-body 3800 headers http://www.wbodystore.com/grandprix/...8.html?image=0 (I coundn't get the link to work so you will have to copy and paste) but with out the flex pipe. He was also talking about bending me up an exhaust system for my Z34 in a 2 3/4"-3" main pipe and spliting into (2) 2 1/4" at the axle. We going to try to make fit like a stock system utilizing the factory hangers, oh ya all mandrel bent. I heard from this site that 2 1/2" is recomended but i figure with headers the motor can acually breath and use something that big.

[OldSkoolGP]

If he is serious about it, and he wants money to make a jig for extra, I'd be willing to invest. I would want to know information about his setup like what size the primaries are, how thick are the flanges he's using, how many pieces will it be when finished, and how many collection points will there be?

[latemodelnewbee]

I have a guy down here already using my 92 5 speed Z34 parts car (it runs drives fine with a little work done to it like intake and cat-back just the car is wrecked) to build a set of headers and as soon as he is done he going to make a jig so that he can make more. I told that no one make headers so he wants to be first. when he is done I'll take plenty of pics and post them on here with a price.

[Superdave]

If you weren't so far away.. and it wasn't so damn cold.. lol


If you played with Legos as a kid chances are that you can build your own headers.. It just takes time, plus you DOHC guys have those weird shaped exhaust ports, that's gotta be fun.

Good luck with any vendors, S&S wouldn't even give me the time of day when i offered to send them a complete set of headers for the pushrod V6 for them to copy. Milzy is a joke, his headers are shiney but that's about it, un-equal length.. bleh.


I'd just start googling for headers and find a place that's close to you, see if you can sweet talk them into the R&D then a group buy. If you are lucky it might work out...

[OldSkoolGP]

Well, I tried. And I failed. Nobody wanted my Grand Prix. Even for $2500 nobody wanted it. So, I'm resigned to the fact that I must keep it, but I don't want to be downhearted about it. After all, it's still the fastest DOHC W-Body on the planet. So I guess at this point I may as well try to get every last ounce of speed out of it.

I'm pretty much done autocrossing it, although I'm not getting rid of that suspension. It's just too much fun taking cloverleaf on-ramps at 70. But to get to the next plateau, the one that takes me to and past 14.0, I know I need headers. I also know that a lot of 91-95 DOHC owners like myself want headers. So rather than trying to get a set made and just for me, I am reaching out to all the DOHC owners out there who want headers to get a group of interested parties out there together to invest time, money, and resources into headers we all can use. I'm happy to lend my car as the guinea pig for any R&D and testing, it's already been the guinea pig for so many other DOHC mods. I am also prepared to finance a great deal of the project assuming it's going to guarantee progress towards getting a batch of headers done.

I tried to talk to Milzy about making a set since he'd already done 96-97 headers but he could care less, so screw him. And I know I could get a one off set done for myself at great expense but that only benefits me and not the community. So anyone interested can PM me or respond to this post. If you know a welder looking for work, or you work at a shop that can do it and you just need a car to make it happen, let me know.