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Author Topic: 1980 intake manifold 1985 exhaust manifold???  (Read 3242 times)

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Offline 85AmCfreak

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1980 intake manifold 1985 exhaust manifold???
« on: March 08, 2012, 11:58:00 AM »
Is it at all possible to use the 1980 intake manifold with the 1985 exhaust manifold?
I Don't know why. But everybody's always talking about their STI or That guys EVO, I think I'll stick with my old, but reliable AmC. Did I ever tell you I was Full blooded Eagle?

Offline doc65

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Re: 1980 intake manifold 1985 exhaust manifold???
« Reply #1 on: March 08, 2012, 12:23:17 PM »
I see a problem with the EGR interconnect & the fact that the 80 should bolt together Intake & Exhaust.  Why would you want to?

Doc

Offline carnuck

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Re: 1980 intake manifold 1985 exhaust manifold???
« Reply #2 on: March 09, 2012, 12:16:50 AM »
Are you close to Seattle? I have an '83 J10 intake/exhaust and BBD carb (all functioning) for $30
FOR SALE
'87 Comanche 4.0L AW4/NP242 3.73 gears, lifted 5" on near new 33" tires $3500 obo
'82 Eagle Wagon (Brown Betty) 4.2L/727/NP229 and soon 8.25 rear axle and non-vacuum 3.08 front to match. 235/75/15 tires. It's down to minor body work (someone creamed my driver's door but I have another in good shape) almost rust free and interior work (seats are worn and carpet torn). $2000 but about to go up due to more work being done.

Pics of my other for sale stuff http://tinyurl.com/jimsclads

Offline 85AmCfreak

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Re: 1980 intake manifold 1985 exhaust manifold???
« Reply #3 on: March 12, 2012, 09:21:22 PM »
I am not using the EGR interconnect I am in New York its a ways away from Seattle LOL but thanks anyway
I Don't know why. But everybody's always talking about their STI or That guys EVO, I think I'll stick with my old, but reliable AmC. Did I ever tell you I was Full blooded Eagle?

Offline BenM

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Re: 1980 intake manifold 1985 exhaust manifold???
« Reply #4 on: March 13, 2012, 01:24:55 PM »
You may have to grind down the riser mounting on the bottom of the intake a bit. The later exhaust sticks out a bit further than the 80, but I don't believe it affects the intake so much as the power steering pump bracket.
NSS#47184

1987 AMC Eagle Sedan -- 1976 Pacer Coupe -- 1968 Pontiac Tempest Custom S -- 1940 Mercury (& a 2002 Jetta Turbodiesel, 5 spd., the Wife's Daily Driver)

Offline 85AmCfreak

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Re: 1980 intake manifold 1985 exhaust manifold???
« Reply #5 on: March 17, 2012, 05:49:23 AM »
So the 85 power steering pump bracket is not going to bolt up to the 80 intake??
I Don't know why. But everybody's always talking about their STI or That guys EVO, I think I'll stick with my old, but reliable AmC. Did I ever tell you I was Full blooded Eagle?

Offline BenM

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Re: 1980 intake manifold 1985 exhaust manifold???
« Reply #6 on: March 17, 2012, 07:21:47 PM »
So the 85 power steering pump bracket is not going to bolt up to the 80 intake??
It should be fine on the intake, the mountings there didn't move; an 80 bracket won't fit over an 85 exhaust without cutting. Sorry, not sure what mix of parts you're using for everything
NSS#47184

1987 AMC Eagle Sedan -- 1976 Pacer Coupe -- 1968 Pontiac Tempest Custom S -- 1940 Mercury (& a 2002 Jetta Turbodiesel, 5 spd., the Wife's Daily Driver)

Offline carnuck

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Re: 1980 intake manifold 1985 exhaust manifold???
« Reply #7 on: March 17, 2012, 09:13:31 PM »
The '80 intake is conjoined to the exhaust manifold. Later intake flows better.
FOR SALE
'87 Comanche 4.0L AW4/NP242 3.73 gears, lifted 5" on near new 33" tires $3500 obo
'82 Eagle Wagon (Brown Betty) 4.2L/727/NP229 and soon 8.25 rear axle and non-vacuum 3.08 front to match. 235/75/15 tires. It's down to minor body work (someone creamed my driver's door but I have another in good shape) almost rust free and interior work (seats are worn and carpet torn). $2000 but about to go up due to more work being done.

Pics of my other for sale stuff http://tinyurl.com/jimsclads

Offline 85AmCfreak

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Re: 1980 intake manifold 1985 exhaust manifold???
« Reply #8 on: March 20, 2012, 04:08:17 AM »
The '80 intake is conjoined to the exhaust manifold. Later intake flows better.

Your kidding....I would think it was the opposite way.
I Don't know why. But everybody's always talking about their STI or That guys EVO, I think I'll stick with my old, but reliable AmC. Did I ever tell you I was Full blooded Eagle?

Offline BenM

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Re: 1980 intake manifold 1985 exhaust manifold???
« Reply #9 on: March 20, 2012, 10:20:45 AM »
The aluminum intake and exhaust combo was actually redesigned by AMC to be better flowing, not just lighter. There is a wider radius turn down on the exhaust manifold for less back pressure and the aluminum intake flows quite well, even with the heater sticking up below the carb. I recall even seeing flow bench numbers on that at one time, but I can't remember where.
NSS#47184

1987 AMC Eagle Sedan -- 1976 Pacer Coupe -- 1968 Pontiac Tempest Custom S -- 1940 Mercury (& a 2002 Jetta Turbodiesel, 5 spd., the Wife's Daily Driver)

 

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