MOPAR Performance (I think) header question

Sahara · Oct 29, 2017

I bought a set of headers from a guy. 440 B-E body. They are new, never mounted. He said they were from MOPAR Performance. They are in several pieces, even the mounting flange is in three pieces per side. They join together at the collector. They were made that way, not cut up.
Does anyone know anything about these? I can find no info on them on the web.

Kern Dog · Oct 29, 2017

Probably some kit to fit headers in a non stock application like a 440 in a FRONT wheel drive car. Direct Connection and Mopar Performance did offer kits to do rear wheel drive conversions. The buyer was expected to trial fit, cut, fit, cut, fit, cut, dent. fit, dent more, fit, cuss, take a shower then start again the next day.

mmissile · Oct 29, 2017

All my Hooker race headers have split-flanges and varying number of separate pipes. They all slip-fit, and have tabs for the collectors to bolt on. Chrysler/Direct Connection-Mopar performance used to sell Hooker headers.

rumblefish360 · Oct 29, 2017

Something like these?
(After and before pictures of the same header.)

Sahara · Oct 29, 2017

rumblefish360 said:
Something like these?
(After and before pictures of the same header.)
View attachment 533620 View attachment 533621

Yup, mine look like that only brand new. They also came with an H pipe that bolts to the collector. In grease pencil someone wrote "440 Cuda" on them. My question being: Will these fit my '70 Coronet? My gut says that they SHOULD, as lots of headers fit B and E bodies. But if they won't fit I need to sell them and move on. No, I can't try them on my car yet. Motor is in one place, body in another, QA1 K frame beside it.

lyndondb · Nov 22, 2017

I can almost guarantee you that they will not fit.

I have a 69 Coronet that I have owned for years, went through several sets of headers advertised for a Coronet all which barely fit, ie, they are tight everwhere.

coloradodave · Nov 22, 2017

Sahara said:
Yup, mine look like that only brand new. They also came with an H pipe that bolts to the collector. In grease pencil someone wrote "440 Cuda" on them. My question being: Will these fit my '70 Coronet? My gut says that they SHOULD, as lots of headers fit B and E bodies. But if they won't fit I need to sell them and move on. No, I can't try them on my car yet. Motor is in one place, body in another, QA1 K frame beside it.

Slip fit headers: Fine on a race car with open headers; not so good on a street car with mufflers. Can you say, "leak"?

rumblefish360 · Nov 23, 2017

How bad is the leak and where?

not so famous bob · Nov 23, 2017

rumblefish360 said:
How bad is the leak and where?

won`t leak if u build very "free flowing" exhaust system, and use a heat proof sealer on the joints, "don`t clamp them !" free flowing won't HAVE HEADER GASKET LEAKS EITHER !

Sahara · Nov 30, 2017

I was going for very free flowing. I’m thinking 3 inch pipes, not sure what mufflers yet.

MOPAR Performance (I think) header question

Sahara

FBBO Gold Member

Kern Dog

Life is full of turns. Build your car to handle.

mmissile

Well-Known Member

rumblefish360

Well-Known Member

Sahara

FBBO Gold Member

lyndondb

Well-Known Member

coloradodave

FBBO Gold Member

rumblefish360

Well-Known Member

not so famous bob

Well-Known Member

Sahara

FBBO Gold Member

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