Anyone noticed c-body exhaust manifolds

ga66mopar · Jun 2, 2013

I have a mid 70's 440 out of a c -body. I got to looking at the exhaust manifolds and I noticed how much they look like the hi-po manifolds. They may not flow as well as the hi-po's but they don't look bad. I was comparing them to a 1966 b-body manifold and they definitely look better then them. I fit them on my 67 GTX with a 440 and they fit perfect. Looks like the c-body manifolds may be a cheap alternative to the hi-po's.

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Photon440 · Jun 2, 2013

If the bottom one is the newer C body, then yes, they do look better. What casting number?

detmatt1 · Jun 3, 2013

You will be lucky to find the C body castings cheap as they are desirable to the C body crowd and are quite scarce. That being said great deals on just about anything can be had if you're in the right place at the right time.

ga66mopar · Jun 3, 2013

Photon440 said:
If the bottom one is the newer C body, then yes, they do look better. What casting number?

I believe the bottom one came off of a 76 new yorker. I will get the casting # tonight. I'm thinking the c-body piece would be a lot cheaper and a lot more plentiful. They may not flow as well a hi-po set but they don't look bad.

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detmatt1 said:
You will be lucky to find the C body castings cheap as they are desirable to the C body crowd and are quite scarce. That being said great deals on just about anything can be had if you're in the right place at the right time.

I have seen serveral c-body in junk-yards with the exhaust manifolds still attached around here. I never reailized c-bodies had decent looking exhaust manifolds that would fit on a b-body and I still don't know what year came with these.

Cranky · Jun 3, 2013

They really are not more plentiful because these cars were among some of the last cars to become collector items and a lot of them got used as parts cars for drive lines etc and before that, the engines were robbed for hot rods and stuff like stock manifolds were thrown away along with the rest of the C body. Heck, I used several of them as donor cars over the years.....

ga66mopar · Jun 3, 2013

Cranky said:
They really are not more plentiful because these cars were among some of the last cars to become collector items and a lot of them got used as parts cars for drive lines etc and before that, the engines were robbed for hot rods and stuff like stock manifolds were thrown away along with the rest of the C body. Heck, I used several of them as donor cars over the years.....

Around our area you can still find for the most part fully intact c-bodies but I don't see them as much as I used to. A lot of them got crushed in the last few years. One junk-yard I go has several mid seventies c-bodies with there engine still intact. I nerver really payed any attention to them until now. I'm thinking the 400 cars probably had the same manifolds..

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Cranky said:
They really are not more plentiful because these cars were among some of the last cars to become collector items and a lot of them got used as parts cars for drive lines etc and before that, the engines were robbed for hot rods and stuff like stock manifolds were thrown away along with the rest of the C body. Heck, I used several of them as donor cars over the years.....

Cranky you think the c-body exhaust manifolds like the ones I have would be worth picking up at a junk-yard for lets say $100 a pair?

Meep-Meep · Jun 3, 2013

Even though those have a slightly better curvature the outlet seems to be small compared to the hi-po ones from the 60's. For the expense and effort to swap them from the logs I don't think they will offer much, but if you have nothing then I'd say use those C body ones over the logs. Or just spring for a set of 1-7/8" headers.

ga66mopar · Jun 3, 2013

Meep-Meep said:
Even though those have a slightly better curvature the outlet seems to be small compared to the hi-po ones from the 60's. For the expense and effort to swap them from the logs I don't think they will offer much, but if you have nothing then I'd say use those C body ones over the logs. Or just spring for a set of 1-7/8" headers.

I have a few of sets of the hi-po manifolds. I just wanted to point out that the c-body pieces looks like something that could be used on a b-body.

Photon440 · Jun 3, 2013

I just wonder what the point was for Chrysler to design different manifolds for the larger cars. Was it a 'make work' program to use up excess profits? Did they need bragging rights as to how many manifold part numbers were on the books? Perhaps a sales tactic, whereby sales staff could point out to New Yorker customers that they were getting manifolds that the Satellite buyers couldn't have. Or even a nod to the EPA, so they could claim that they're trying so hard to meet emission standards, they even revamped their exhaust manifold designs.

Just curious...
'

YY1 · Jun 3, 2013

Seems like there were all sorts of missed opportunities for cost savings from not tooling for multiple parts when the same one could have worked.

moparmarks · Jun 3, 2013

The upper manifold in the pic is just the standard log style. The lower one is the later HP but was also used on LP motors too.
The earlier C-body HP manifolds used the same right one as the B-bodies. The left is real close to the B but has a different angle on the pipe flange.
Here is the 69 C HP manifolds. The right brings around 150.00 beings how it is the same as B. The lefts bring around 75.00 which is what I sold it for.

Meep-Meep · Jun 4, 2013

ga66mopar said:
I have a few of sets of the hi-po manifolds. I just wanted to point out that the c-body pieces looks like something that could be used on a b-body.

I hear ya. If you have them why not. Plus it opens up another manifold opportunity for the B body. You might want to run the heat shield gasket with those to keep from cooking the valve cover gasket.

Anyone noticed c-body exhaust manifolds

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