I have a 1991 Camaro Z28 with 5.7 Liter TPI engine. I have dual cat exhaust setup. What do any of you think about the Edelbrock smog legal headers part number 6876 for this application? Is the metal gauge too thin or thick? Does it have good exhaust scavenging ability? thank you.

Seeing as to how it's so expensive....just get the SLP 1 3/4's and forget the Edelcrock stuff.

Agreed. if you are going to put those on your car you'd wantthem jethot coated inside and out to prevent rust. By that time you have gone over the cost of SLP's stainless steel headers. Several people here have also said the Edel's are a MAJOR pain to put in.

They were easy to put it for me I have no complaints about them but they are going bye bye next year, getting long tube headers

You have to do some cutting and welding. You will still use your stock y-pipe.I stripped mine and used some high temp. paint from eastwood. 2 years and still looks good. If I had to do it again, I would go either SLP or MAC.

I used them and I don't like the Edelbrock's so much. I think they're poorly designed. Go with SLP if you want quality pieces.

i have the Edelbrocks. i like 'em but if i were to do the job over again i'd probably get Hooker or SLP. the Edelbrock design isn't that great and to me they're a bit overpriced. good thing about 'em is that the plugs are easy to change (for me anyways), and they drop right in. no denting required. HTH

I like mine....had them JET HOT coated inside and out.....mever had any problems with them. If I had a ton of cash...I would have went with SLP.....aww well...anyhow..I like'em....

Does anyone aware of stainless steel from a metalurgical standpoint? I was talking to someone about the SLP headers. This person was telling me that stainless steel as a metalurgical property severely warps under extreme heat. He had a customer come in to have a set of SLP headers installed in a 91 camaro and a year later the customer was very dissatisfied because the headers warped so much he started getting exhaust leaks near the cats and at the header flange. His answer was to stay with mild steel material headers and have them Jet-Hot coated. What are your views on this.

2+ years running SLP's no problems. If anything mild steel will warp long before stainless. Stainless is a stronger, more durable metal than mild steel or even chrome molly for that matter. I think someone was blowing smoke.

13 years running the SLP stainless steel Tri-Y 1 5/8" headers and they are still going strong. In fact I also have the SLP cat back stainless steel parts and muffler. Still going strong with no end in sight. By the way the SLP exhaust system was the biggest seat in the pants improvement I have made. I would recommend upgrading the exhaust system first. That way you will see greater improvement with each of the other upgrades. Allen

Gunmetal 1989 GTA with Dual Cats

Both SLP and TES(Edlebrock) are fine headers. SLP cost a lot more($500) and and come in both 1 5/8 and 1 3/4. TES($350) come in 1 5/8 only. Performance difference is neglegible for most 350cid applications. Both are shorties so unless you're getting Long Tubes it don't matter much.
I do hear people have more problems instaling, and changing plugs with, 1 3/4 SLPs.
Stainless steel VS. mild steel doesn't matter unless you care a lot about appearance. I've had TES for about4 years(NY-outdoors) and they look rusty but are nowhere near rusted-through, as some folks will have you believe. I changed my motor from 305 to slightly built-up 350 and I had the money to get SLPs 1 3/4 but chose against it, since I had a pair of perfectly good headers already.
The only regret I've made in my choice of headers is not to get them ceramic coated. No matter which headers you choose, I beleive, that should be the deciding factor. Coated headers will stay cooler and the advantages of that are numerous and far outweigh shorty header design, diameter and original material.
Hope that helps.
If not, do a search. The TES vs. SLP is a topic beaten to death w/no clear winner.

i wouldnt bother with the edelbrocks. i had them, and then dumped them and got the SLP ones.

i had the same ones you are looking at, and the quality is non-existant compared to the stainless SLP headers.

the designs were similar, but the edlebrock primaries were way smaller at points than the 1-5/8" that they claim they are. at places, they looked like they were 1-3/8", and i'm not kidding. and, the quality of the welds was terrible.

i was just plain unimpressed by them, and quite the opposite with the SLPs...they have amazing quality, in both the welds, the flanges, and the primaries themselves.

just my 2 cents...

-Brian

New to the board, so first off Hi everyone. Next, I've got the edelbrock headers with the nickel plating and the three inch y-pipe. I like the way the nikel looks, and how they haven't rusted or discolored or stuff like that. They are decent, but nothing special. Install wasn't exactly easily. There's a few spark plugs that are harder to get at now, but eh. However, they aren't the most quality header.
If I was going to do it over, I would have choosen the SLP's, because I've seen some on a few cars before, and look to be a better install, and they fit somewhat "tighter" in the engine bay? (I don't know if that made sense).
But mine are going anyway along with the LG4, to make way for the 350 and LT's

The TES headers are not hard to install, which is a popular myth. They are actually the best fitting headers for a sbc in an f-body. I've helped insall SLP headers and the steering box gets in the way(PITA). The HSCLT weren't even as bad as the SLP's, The starter is a problem as is the crossmember sometimes, but not on my car. As far as the TES performance, it wasn't bad, but the collectors suck big time. This is the worst part, and it's worth staying away from these headers because of this. I really hope Edelbrock corrects this, then they'd have a quality piece at a good price.

Im gunna go ahead and gunna have to disagree with you there, hedmans headrs look so much more easier to put in then the edels, not to mention they leave the most room to get out the plugs.

I was able to install my TES edel by myself and It only took me 6hrs to do it. The hardest part is removing the factory headers.
But I have to agree the quality does suck. Mine is less than two yrs old and now it looks like crap. I even got the nickel/chrome coated headers.

I have the 1 3/4 SLPs and I have no problem changing all the plugs from above the motor. Takes me 15 minutes.

Couldn't tell you about the install difficulty because the motor went in with the headers already bolted on.