TTI/Eddy Sealing Problems?

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GTXperience

GTXperience

Orig Stealth Mod
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I have heard from several people that they are having sealing issues with TTI headers on Eddy heads (unported and ported). These people either switched headers or have added a bead around the header port and ground them down to get them to seal properly. Can anyone share their experiences whether it be good or bad (especially if you have run into any problems and what you did to correct it)?
 
GTXperience,

I was having some sealing issues when I was dynoing my motor and the machinist took the gaskets out and used high temp sealer - NO GASKETS!

When I installed the motor in the car I did the same thing and it has been years - no leaks.

Why do I think I am going to get some hate mail on this one...? (-:

Kory
 
i have a set of unported eddies on my duster with tti...

I have not had any sealing problems...
 
I've had no issues with my tti's sealing..are people installing them right??..
 
most of the sealing issues are when the port is opened up to a particluar gasket match. The margin on the eddies is pretty thin to start with in the area in question., porting makes it thinner.

Best thing is to test fit a gasket that matches the header to the port window.

You never know until you get there!
 
Well if your porting the exhaust side of the heads to the point where they're bigger then the ports on the tti's,of coarse they're not going to seal!!
 
I called TTI and they say the sealing is "marginal" on eddie heads to begin with. My heads were port matched to the FelPro gasket but head porter informed me the ports were not opened up beyond Edelbrock specs. What can happen is you can get unlucky and the bead on the "marginal" header just happens to be thinner then the next header rolling off the line.

So what I did was have a welder add a bead to my headers in the "marginal" area. I have run the engine and pulled the header to check sealing and its now sealing like a champ!!

Also, the TTI header hangs into the port on the end cylinders. While this does restrict flow its not that big a deal being its on the lower side of the port.

Now the million dollar question is, do the Dougs have this issue??

HeaderFlangeWeld.jpg
 
you can see the carbon buildup from the smaller port of the gasket. this gasket was ran on stock eddys and stock js.
something seems wrong with the size of the ports.

IMG_3080.jpg


IMG_3089.jpg


IMG_3081.jpg
 
abodyjoe said:
hmm.. had no problems sealing my tti's on stock eddy heads.
Click to expand...

I think most people don't have problems sealing to Eddie heads when good gaskets are used. But like TTI told me, its thin on those outside lower corners.
 
abodyhotrod said:
you can see the carbon buildup from the smaller port of the gasket. this gasket was ran on stock eddys and stock js.
something seems wrong with the size of the ports.
Click to expand...

If you use good gaskets like the FelPro header gasket I believe yours will seal because it looks like you have enough metal there to get a good crush. The TTI gaskets are known to leak. It would also help to thicken up that header bead like I did for extra insurance too. I don't think its needed in your case, but it would help to better seal those out side corner areas.
 
The top gasket is a FelPro and the bottom is the TTI which I didn't bother even trying. You can see how thin the header contacted the gasket in the lower outside corners. The FelPro gaskets matched the exhaust ports in the heads perfectly. The TTI gaskets matched the TTI header flange bead perfectly. Because the header hangs into the port and the bead was thin on mine I had to thicken it up so that enough metal would crush the gasket. The two inside exhaust ports matched the ports on the heads perfectly.

My guess is the Magnum heads have smaller ports so that is why TTI makes the headers the way they do. If they would just thicken up the bead mine would have never leaked. Matter of fact when I called TTI that is what they told me to do. And I wasn't on the phone with them long; I don't think it was the first call they had with this issue.

HeaderGaskets.jpg
 
340s,when i first ran my tti's i used the gaskets they supply..i'll tell ya' i had zero leaks with them...might be worth a try..
 
340sfastback: If you're heads are port matched like Abody hotrods up there, it appears that the header sealing portion of the header is blocking a significant portion of the port.

I don't know why people don't just make them the way the good Ford stuff is made, with just a flat flange at the cylinder head. Doesn't leak and you don't have these BS issues.

I'm putting a Magnum engine in my Dart this winter, and now I'm worried about this issue. Unfortunately, I have a whole TTI exhaust system sitting here, but I'm highly tempted to order the Doug's just to see what they're like.

Does anyone have a part number for Doug's headers in a 71 Dart with a 360?
 
I run TTI's on my 69 Dart with Eddy heads and have zero leak and they have been on there for 2 years. I cant remember which gaskets I used but they are blue in color, could be the 1213 Felpro. I also have used the green color gaskets with no problems either, I think those are Mr.Gasket. Same thing when I had the stock iron heads-no problems. Greg
 
stroked 340 said:
340s,when i first ran my tti's i used the gaskets they supply..i'll tell ya' i had zero leaks with them...might be worth a try..
Click to expand...

I already fixed the problem by making the bead around the flange wider. Its not a gasket problem, there is no metal to pinch the gasket, any gasket, because of the way the flange's bead lines up with the exhaust port.
 
LXguy said:
340sfastback: If you're heads are port matched like Abody hotrods up there, it appears that the header sealing portion of the header is blocking a significant portion of the port.
Click to expand...

He says his heads are not ported in his post above?
 
340sFastback said:
He says his heads are not ported in his post above?
Click to expand...

Sorry I mistook him for someone else that had posted about gasket matched Eddy heads.

340sFastback said:
My heads were port matched to the FelPro gasket but head porter informed me the ports were not opened up beyond Edelbrock specs.
Click to expand...

I didn't realize that the Doug's headers were not a stepped header. I don't think 1-5/8 is optimal for my combination. However, that would make for more clearance around the torsion bars, front end components, etc. I also like the way the middle ports on the driver's side don't have the crazy bend like the TTIs.

Hmm. Decisions decisions.
 
LXguy said:
Sorry I mistook him for someone else that had posted about gasket matched Eddy heads.

I didn't realize that the Doug's headers were not a stepped header. I don't think 1-5/8 is optimal for my combination. However, that would make for more clearance around the torsion bars, front end components, etc. I also like the way the middle ports on the driver's side don't have the crazy bend like the TTIs.

Hmm. Decisions decisions.
Click to expand...

I thought you already had a set of tti headers.

the step is a pretty overrated deal on most engines. If optimizing power is your goal... tti and Dougs ARE NOT the answer.

The power diff between the step tti and straight tube Dougs is fairly insignificant.

The sealing of the port using the bead is a good idea for getting additional gasket crush, however, it's got to be aligned with the head sealing surface. Going flat plate style is ok, but, they tend to warp easier and any imperfection is magnified,
 
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