Id like to have a new one, I do not know if they are the least bit avail. but if anyone has one that is the newer stronger style and would like to part with it I would pay good money.

Thanks

Dorman 674-232 Exhaust Manifold....can't speak of quality...
I was lucky to find a few NOS MOPAR kits a while ago...and have already used one in my '72 Valiant with great success for 4 years now....these manifolds had provisions for O2 sensor....nice manifolds and probably the strongest/best engineered in the evolution of this engine.
Good luck...

Here y'go.

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Too many people who were born on third base actually believe they've hit a triple.

Ok I got one, thanks for the link.

Stupid question maybe but I am wondering who made the product, are Dorman products recycled OEM stuff. I guess it might not be too bad a manifold, its not like a carb. with alot of moving parts and the reviews on amazon were good.

Also I know the answer is out there cause Ive looked into it already in the past but if anyone cares to answer Id like to have the manifold powder coated red, is this a good idea or is it going to cause me problems, will it even hold up. Id like a permanent coating that will look good and not burn off.

Do I still need to bolt the manifolds together and have them resurfaced? I was planning to do this so its no problem and Id guess that is the only way to have the two manifolds match one another.

Dorman is a major supplier of new (not "recycled" or otherwise used) repair parts for all makes of cars. www.dormanproducts.com . All of the new aftermarket exhaust manifolds are cast in China. Some of them are better quality than others -- you know how it goes, they might all come from one foundry, but the good ones go to the high bidder, the decent ones go to the next-highest bidder, the passable ones go to the third-highest bidder, and the rejects go to everyone else...then they all get sold on the American market where buyers get not more than what they pay for. The Dorman items tend to be the good ones.

I don't think powder coating is going to be compatible with the high temperatures an exhaust manifold operates at, but the person to get with is Leanne at Phoenix Specialty Coatings. She makes powder coating walk, talk, and do backflips; she is my go-to for any and all questions and work. If there's no high-temp powder coat that'll work, she'll probably know where to send you for a different kind of surface finish.

Whether or not to have the manifolds surfaced together depends on the condition of your intake. Not a bad idea to do it as long as the shop that does it for you doesn't brutalize them (take off too much material).

It is very much worth your while to get the good gaskets for the manifolds-to-head and intake-to-exhaust junctions.

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Too many people who were born on third base actually believe they've hit a triple.

You are one helpful guy and thank-you for taking your time to answer peoples questions.

I thought these might not be so good for me since all my surfaces have or will be machines flat, I thought it not only unnecessary but might also hinder the manifolds from moving as they should cause they are pretty thick Ive been told to compensate for unmachined surfaces. Im glad you have corrected me, I will get these and contact cudachick about the powdercoat

Called Leanne and cannot podercoat manifolds. Suggested Jet Hot and will pursue that if they have a red.

Jet hot/ ceramic coatings will certainly stand up to the heat of the manifold... The only thing to consider is that the coating will actually help contain the temp inside the manifold,all good for tube headers,but,on a cast iron component the increase in material temp will cause it to expand more...a lot more, I have experienced this on a Hemi 6, to the point you could see the witness marks on the gasket and washers,it was a marked increase in movement over the non coated manifold. This may or may not be an issue,but over time my concern is the manifold may eventually crack. The modern exhaust manifold paints seem to do a great job and that's what I ended up using on my Nos slant manifold.

Thanks, how did you prep the manifold prior to paint? Ive read that the jet-hot can be very expensive anyway, I cant justify having the manifold coated for the same cost as the manifold itself.

All gaskets require a flat surface; these don't have special requirements in that area.

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Too many people who were born on third base actually believe they've hit a triple.

As far as prep goes I had it sand blasted so it was very clean inside and out prior to ceramic coating. I've done a few manifolds with cast iron coloured manifold paint,if the part is a used item and you bead or sand blast the surface prior to painting it lasts very well and a lot cheaper than ceramic! I did my daily drive when I freshened the engine about 35000 miles ago now and it still looks good.... But for really nice builds the ceramic is the winner if used on the right components,it's just expensive.
I understand what you mean about gaskets allowing movement during heat cycles. I've always just used the steel shim gaskets with a smear of hi temp silicone and never a leak.....but...this is on good flat surfaces and installed correctly. If you've got a used or slightly warped manifold then it seems the shim gaskets are far from the best choice. Most guys use the aftermarket remflex items and seem to give excellent results

Thanks

When coating the cast iron exhausts, did you also do the hold-down tabs with the manifold paint, or in the ceramic coating projects?