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Stan's Headers for a 6.2 ... Anyone have them?

1977k5 said:
In my experience, headers are pretty unimpressive at anything other than really high RPM stuff, a 6.2L diesel is the opposite of that. A turbo would probably make 10x the difference that headers would.
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Hence the heavy arguing. The header crowd says it does almost as much as a banks turbo.

Kind of always struck me as funny though.

Power and 6.2 diesel:haha::haha::haha::haha:

No matter what ya do its to get it adequate
 
1977k5 said:
More air is more air, no matter the elevation.

The big deal about adding forced induction at altitude is that the first bit of boost is making up for the lower air pressure at altitude, so you can get back to sea level HP with a little boost and only put stress on the motor as it was designed. Anything more than that is gravy.

In my experience, headers are pretty unimpressive at anything other than really high RPM stuff, a 6.2L diesel is the opposite of that. A turbo would probably make 10x the difference that headers would.
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Maybe it sounded like I was arguing FOR the headers, but I have added a turbo to every 6.2,6.9,7.3 that I have ever owned. I think the headers and nice exhaust are a nice bump in power (like on most any engine), but wouldnt waste my time unless I absolutely could not or would not turbo. Normally aspirated you can only turn a pump up slightly (even with exhaust mods) without getting smokey. On most of them fuel rate can be maxed out with a turbo and have no smoke while being worked under boost...that should be more power than headers right there.

and from my experience it takes about 5 extra psi at 8000 ft to have the same smoke/power level that I do at 3500 ft.
 
The only thing I have to add is NA diesels are extremely air starved. Diesels pump their entire volume of air every other revolution. Because of this any restriction becomes significant as rpm increases. My 6.2 made 12 wheel horsepower more with the air cleaner removed pointing out that anything to increase air can really help. The other fact is that if properly designed to enhance scavaging they could make a big difference. I would run at least 2.5" and more likely 3" to help get the exhaust out with minimum back pressure. Remember because diesels emit lots of carbon, packed turbo style mufflers can plug up with soot.
 
I seriously considered running a set on my truck but once I ran the numbers cost wise it just made better sense to turbo it. Now if they were cheaper, then yeah I'd run them. Stan's does offer just the flanges for sale though. Which I'm thinking of using for when I make new manifolds for mine.
 
Dual 3" with Summit chambered mufflers.


I don't think it was faster, but it sure sounded better than when it had the weenie duals on it.
 
WHITE THUNDER said:
Ordered from Stan's. Just waiting for them to come back from jet hot coat. Ditched my intake manifold for a J code too. Will post results and pics soon.
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Definitely interested in this also. As I said in a previous reply I've never been able to find anybody post about the actual gains when installing these headers so will be nice to hear some real-world testimonial.

Never directly compared the big-block to 6.2 pattern but always wondered if the exhaust ports were about the same. Thought would be if you could get the 6.2 flanges and then a set of big-block headers, cut the flange off the big-block headers and weld on the 6.2 flanges with minimal work?

Still have a hard time believing the headers are equivalent to a turbo setup but maybe I will be proven wrong. The Stan's claim of 60 HP is around 40%. Using that math you could get an extra 80 HP out of a TBI 350 (though I know diesels respond differently to some modifications).
 
I bought a set a few years ago , have been saving them for when I can get one of those Aussie supercharger kits
 
Well If I ever end up doing it , I will run 3" from the "headers" and merge into a 5" single with a shorty aero turbine muffler

I have a fresh optimizer on the stand that's studded .......



The supercharger kit is crazy stupid expensive though
 
Do they have the same shape as the manifolds where the pipes bolt up? will kit form exhaust mount up?
 
It's a ball and socket arrangement , it's like a full length header , I'm not sure if any of the shelf kits would work but a good exhaust shop would have no issue hooking up to them
 
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