The subject is fairly descriptive, I'm looking for my option on an exhaust manifold because mine's seen beter days. I know that for a good price I can get a stock manifold type but I was wondering if anyone know of any performance or better designed version that might be better at standing hard use.

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My car may be slow to sixty, but at least it's been reliably slow to sixty for more than thirty years.

Oh yeah, My car is a Dodge Dart 1973. It has a 1bbl 225 slant six.

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My car may be slow to sixty, but at least it's been reliably slow to sixty for more than thirty years.

Dutra Duals are an option.
http://www.dutra.org/doug/doug-sl6-exha ... ls-set.jpg
You may be able to use your cracked manifold to make-up the rear manifold.
http://www.slantsix.org/articles/exhaus ... d-mods.htm
DD

>>The subject is fairly descriptive, I'm looking for my option on an exhaust manifold because mine's seen beter days.<<

So has mine. When the head was redone (rebuild/unleaded conversion to my stock '65 head) I just took the intake and exaust manifolds off as a pair. Despite the cracks they where not completely broken and stayed together. I put them back on as a pair (I bet those bolts between the intake and the exaust have never been out). They continue to work fine. Yes, a slight leak for the first 2 or 3 minutes when started cold. But it quickly goes away and they work fine. Anyway, I've seen more cracked /6 exaust manifolds than non-cracked ones. *Espcially* true of the old non-ribbed ones used on '65's.

That %&$* manifold has got to be the worst part on the slant six (an otherwise excellent engine). I've often wondered if I could heat the engine up real good and leave it running, then weld the cracks up in place (do not try with electronic ignition)

Paul

Do Duals.. Your slant is trying to tell you somthing! In the past any break bend, or failure i have went the best i could get! I put a pushrod though a lifter so i went full adjustable with 3/8 pushrods. Now is the time to upgrade if any time was.
Frank

Duals sound fun, though they definately would be an odd accent with a maybe 105 horse engine(assuming that the upgrades that I've done make up for an exhausted engine). Thanks for the options, now all I got to do is make up my mind.

I just swapped out a busted exhaust manifold. I still have a leak. I think there may be a slight warp, it leaks where the intake meets the heat riser. Maybe a machinist could true a manifold set to seal better.

Not sure if this is a stupid question but where do I get the front part for the Dutra duals? I get the rear manifold procedure and believe I know where I could do the arc welding but is the front manifold part bought somewhere?

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My car may be slow to sixty, but at least it's been reliably slow to sixty for more than thirty years.

You have a PM...
(check your listed email address, it bounced)
DD