Treblig's doughnut?

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R3dplanet

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Hey, I've ditched my headers and installed some 1971-1972 exhaust manifolds on my '65 Barracuda with a 360.

The passenger side is casting number 3618623 and fits fine. The center dumps looks reasonably straight forward to access in order to make a head pipe. The driver side casting is 3614368-2 and also fits fine, barely missing the steering column, but it's in there. The dump points slightly forward so it needs a head pipe or adapter with a pretty sharp 180 bend. I've seen Treblig's nice donut that solves this problem but don't know what to do about getting one. I think I read he doesn't make them anymore on another thread?

Tried to message Treblig but his inbox is full. Treblig, are you out there?

Did anyone buy one they're not using? I brought my car to a good exhaust guy and he basically told me to get lost. Maybe buy a huge Buick like he has to make it easier on myself next time. Ugh. Not what I need.

Thanks,
Red
 
"Good" exhaust guy told you to get lost? Time to up your standards and find a better guy. The "doughnut" is the raw bend you buy to make your initial bend out of. You cut the section you need, weld it to an exhaust flange, and run other pipe and bends to get the headpipe where you need it. Not all exhaust shops are capable of making a tight enough bend themselves, but they can get the parts to make it just the same as we can, if they are willing. Good shops usually are- unfortunately they're getting harder to find. Hit up members of your local car clubs to see who they use locally... that's usually your best resource.
 
Yeah. Like so many other gearhead businesses the local outfits like machine shops, exhaust, blasters, powder coaters, painters, etc. have either gone upscale or closed up. No time for small fry.

I'll see if I can buy a mandrel bent donut (Thanks for the link, tFF!) and maybe find another exhaust guy.

What a pain.
 
You can buy the direct fit head pipes from TTI and Accurate. Pricey but good fitting stuff for your manifolds. It’s a lot cheaper to make them up.
Maybe treblig has one laying around from the old days.
Good luck.
 
67dartgtgo said:
You can buy the direct fit head pipes from TTI and Accurate. Pricey but good fitting stuff for your manifolds. It’s a lot cheaper to make them up.
Maybe treblig has one laying around from the old days.
Good luck.
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I called both of them. TTI was quick to get me off the phone. They said with these casting numbers they only make head pipes for '67 and up. That was after calling one day and got "the guys went home early" and days later with a "they're all at lunch" etc etc. Accurate was nicer to deal with but they don't make the head pipes either.
 
66fyssh said:
By putting @ in front of a members' name it sends them a notification. Rusty is just trying to wake up Treblig!!
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Wow, who knew? This thread is full of educational treats. Thanks for illuminating me.
 
R3dplanet said:
I called both of them. TTI was quick to get me off the phone. They said with these casting numbers they only make head pipes for '67 and up. That was after calling one day and got "the guys went home early" and days later with a "they're all at lunch" etc etc. Accurate was nicer to deal with but they don't make the head pipes either.
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Oh snap. My bad. I’ll read a bit better from now on. Missed the 65.
That’s true...67 and up.
 
Treblig said:
Been pretty busy...what's up???
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Helloooo. We're having a jam session about your exhaust donut whizbang 5000. As seen here:

Early A exhaust fitment?

I'm having difficulty getting any local exhaust guy to make one. You don't make them any more, correct? Wondering how to proceed. Thank you for dropping in to listen to me wail like a sea creature about my exhaust troubles.
 
Well.............I haven't made one of those in over 2 years now. I do have a section or two of the mandrel bent pipe to make one but I've run out of the flanges and flat flared ends. The flange can be easily purchased on ebay and the flat flared end can be made at a local muffler shop. "Wail like a sea creature"...that's pretty funny!!LOL Let me know if you would be able to manufacture one and I can sell you the section of mandrel bent tube that I still have? These mandrel bent large tubes are seldom seen in the wild!!!



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Hey, thanks for getting back to me. While I have a mig welding setup my welding skill is .. third rate. Nothing that I would consider leak proof anyway. Since yesterday I ordered a 2.5" diameter, 3.5" radius J-tube. Maybe if you can show me a link to where I can buy the correct flange I can get a better welder then me to fabricate one.

If that works I can try to make some drawings or templates so when this comes up the next time we won't have to pester you. Maybe post it as a sticky in the How-to section.

Thanks again,
Red
 
thesiren74 said:
You just castrated that 360.
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My, what a helpful addition to the discussion.

Do you know what else I did? I stopped a never-ending series of exhaust leaks, made it possible to easily change the spark plugs, and prevented cooking the hydraulic brake and clutch lines. And at what cost? 10-15 hp at the high RPM range.
 
Not everybody wants or needs headers, especially on a mild, street-driven build. 340 manifolds, especially, hardly constitute "castrating" an engine. If they were teener or 273 manifolds you could make a case for it, but the 340 and Magnum mannys are different animals. Might even gain some bottom end over the headers, depending on your build. And you lose all the inherent problems of headers on daily drivers, as stated. Look at F.A.S.T. cars- up on the back tires with stock-type exhaust and DOT bias-plies...
 
R3dplanet said:
Hey, thanks for getting back to me. While I have a mig welding setup my welding skill is .. third rate. Nothing that I would consider leak proof anyway. Since yesterday I ordered a 2.5" diameter, 3.5" radius J-tube. Maybe if you can show me a link to where I can buy the correct flange I can get a better welder then me to fabricate one.

If that works I can try to make some drawings or templates so when this comes up the next time we won't have to pester you. Maybe post it as a sticky in the How-to section.

Thanks again,
Red
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I posted details on the process here on FABO but I'm not sure where it is....been too long. Let me see if i can find the pics. It's kind of a "figure it out as you go" thing.
 
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Professor Fate said:
Not everybody wants or needs headers, especially on a mild, street-driven build. 340 manifolds, especially, hardly constitute "castrating" an engine. If they were teener or 273 manifolds you could make a case for it, but the 340 and Magnum mannys are different animals. Might even gain some bottom end over the headers, depending on your build. And you lose all the inherent problems of headers on daily drivers, as stated. Look at F.A.S.T. cars- up on the back tires with stock-type exhaust and DOT bias-plies...
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Doubt it. Headers will always beat manifolds. And I'm sure they would run a lot better with headers in the fast cars. Nascar should use manifolds for all that hidden power.
 
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