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I was just being facetious, when I said they weren't worth much. I'm sure you know by now they are pretty sought after, and fetch a few bucks. Welcome to the site.

Negative: 2863549 & 2863553 are the set.

Hi-Po 68-70 340 A body Should be #2863549 Not worth much :rolleyes: Ill take them if you don't need them.

Comp XE268 Flowmaster 40 series FTW !!!!!!!!

Eastwood High Temp Factory Gray. Best product on the market.

3" sounds about right.

I can snap a couple pics for you Rusty.

I was on my way over, but I have a Scamp to do. Remember? :poke:

Eastwood Factory Gray. Spray or Brush on. I use the spray. Worth every penny.

I wouldn't be happy having to use the part store hangers. I would take that up with them, and get the correct hangers.

Sound wise, I believe a 40 series Flowmasters takes the cake Something about Flowmasters is just pure muscle car sound. The problem with Flowmasters, is they don't flow as well with their chambered design. Best flow would be a straight through design, like a Magnaflow or Dynomax. My next car...

Blast from the Past !!!!

Zero issues. The inside is insulted.

Or you could go with a starter heat shield wrap.

So than get some Krylon or Rustoleaum, fire the car up, and watch it melt off. You get what you pay for. Eastwood paint is on sale for $12.00 a can. If you cant afford that, than this hobby might not be your best choice. Spend a couple extra bucks, get good paint, and move on. :)

Eastwood x2

Magnaflow.

Get your Gold Card out for the part. :(

Here are a couple pics of a 340 I'm working on. Hope they help.

Keep in mind that some of the studs go into the water jacket, and need a sealant. I prefer permatex high temp thread sealant.

Pretty much answered your own question, in order. TTI, Dougs, Hooker.

Best sound...Flowmaster 40 series. Best flow...Magnaflow Welded. I would go for flow/performance over sound.

In the tune it was in, 2bbl, single exhaust, not so much.

This is the original 318 motor in my 70 Dart, before I put a 360 in. Stock 318,340 HiPo manifolds, Dual exhaust/H pipe, 4bbl Edl Performer, Edl 600cfm, Mopar Electronic Ign. Stock 273 gear 8 3/4 rear, peg leg. 215/70-14 tires. This combo would roast the tires all the way down the street. So yes...

"REAL" 340 manifolds, are 68-70 340 HiPo manifolds. P2863549 right P2863553 left. They are fetching from $400-$500 depending on condition. Sad, but true. In 71 the 340 came with the same left P2863553 manifold, but went to a more restrictive P3418623 on the right. This is why people have used...

There is no question that it gets tight in the area you speak of for exhaust. Yes a good shop can moan and groan and build the head pipes, but it is a pain, with a majority of them coming out like a Frankenstein project. You are doing the right thing by buying a nice set of head pipes. Also...

Not sure if I missed it, but have you tried a 90º adapter ?

Go for performance. Me personally, I like Magnaflows straight through design.

You are correct.....:thumblef: Powder coating generally takes 350-400deg in an oven to cure. Manifolds operating at 800-1000 degs is not uncommon. So........

Eastwood Factory Gray....Works really well. They have spray and brush on. I use the spray. Getting the manifolds spotless is key, for the coating to last. I use brake cleaner as a final spray/ degreaser Good luck !!