Exhaust Manifold 6-Cylinder Without IMCO 1965-1967

CJ's Part Number: EXM1
CJ's Low Price:
1508544000 13197
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Exhaust Manifold 6-Cylinder Without IMCO 1965-1967

Product Description

Exhaust Manifold without IMCO for all 1965, 1966 and 1967 Mustangs with a 6-Cylinder Engine.

Are you noticing an exhaust leak from your Exhaust Manifold on your 6-Cylinder Engine? If so you might be interested in this high quality replacement today at CJ Pony Parts. This Exhaust Manifold is a direct replacement for all 1965-1967 Mustangs with a 170 or a 200 6-Cylinder Engine.

Features & Benefits:
- OEM Style Replacement
- Aftermarket Design
- Manufactured from Cast Iron
- Not Designed to work With IMCO

Please Note: This Exhaust Manifold features 3/8" mounting holes so you must purchase this Exhaust Manifold Stud and Nut Kit (HW3478).

*Mounting Hardware is Not Included when you purchase this exhaust manifold.

This Exhaust Manifold features an aftermarket design that is constructed from high quality cast iron. The high quality cast iron is ideal for a stronger long-term performance. The Exhaust manifold is designed to work on 1965-1967 Mustangs without IMCO. IMCO is for Improved Combustion this is designed to help with the emission system.

Whether you’re looking for an exterior mirror, wheels and tires, headlights and taillights or a set of interior upholstery, CJ’s has the parts you need to complete your classic Mustang restoration with ease! CJ’s has the parts you need to bring your early model Mustang build back to life--browse our huge selection of restoration parts for your pony today!

Purchase your Exhaust Manifold without IMCO for your 1965, 1966 or 1967 Mustang with a 6-Cylinder Engine from CJ Pony Parts today!

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Installation Instructions

Mustang Installation

Mustang Applications

This product will fit the following Mustang years:

Product Reviews

Write a review
Exhaust Manifold 6-Cylinder Without IMCO 1965-1967 is rated 3.8 out of 5 by 11.
Rated 1 out of 5 by from Caution I received the first #EXM-1 exhaust manifold and to my disappointment I noted the following (See 1, 4, and 6 pictures): 1. Blockage caused by excessive mold flash (and what appears to be a large nail) in cylinder #5 port which would impede the exhaust gases from cylinders 5 and 6 from escaping. 2. There is also a large sink on top of the manifold in the cylinder port 3 & 4 area and flash inside in the same area. 3. Two of the bolt hole flanges (where the long bolts go) were not square to the holes which would result in the bolts and air conditioning bracket not being able to seat properly. 4. The heat riser tube hole was machined undersized and the ¼” diameter heat riser tube for the automatic choke would not be able to be fitted in the manifold without drilling the hole to fit (and existing hole was clogged with metal chips). 5. Exhaust flange tapped holes were not the correct size (they were 3/8-16 UNC, should have been 7/16-14 UNC). I returned the manifold (C J Pony Parts paid for the return shipping) and received a replacement. I inspected the replacement manifold and all looked good except items 2, 3, 4 and 5 above. I figured I could grind the manifold bolt flanges (the (2) long bolt hole areas) so the A/C bracket and bottom bolt would seat correctly. I drilled out the auto choke heat riser tube hole to ¼” so the tube would fit and figured I could obtain some correct size studs/nuts for the flange (needed 3/8-16 UNC x 2 ¼” long hardened studs and lock nuts). After those modifications I decided to bead blast the paint off of the manifold so I could spray it with a high temperature silica/ceramic coating. After bead blasting the manifold to my horror there were voids in the casting and they were filled with what appeared to be epoxy! (See 7, 8 and 9 pictures). If I had not decided to bead blast the manifold and installed it I am sure the epoxy would have blown out in short order and I would be replacing the manifold again. I must give kudos to C. J. Pony Parts for trying to get me a decent manifold, however, they really ought to dump their existing vendor and find another so customers won’t receive sub-quality manifolds.
Date published: 2015-04-12
Rated 4 out of 5 by from Good fit! I got this to replace my old one. No problems with the fit. Lined up just like the old one. I knew before ordering the bolts to hold the muffler were different sizes and I ordered them at the same time. They would screw in, but one was very loose and the other would barely hold on in the hole. I had to take the manifold back out and I redrilled and taped the holes so the original bolt size would fit. Easy to do and I didn't crack the manifold while doing it. Gave it one less star because of that.
Date published: 2017-10-17
Rated 5 out of 5 by from It fit great I was a bit concerned about this part due to other reviews, but the part I received did not have any defects and lined up just fine. My old manifold was shot and only pieces of the gasket remained. I replaced the gasket and the mounting bolts. All works great and the engine runs and sounds MUCH better. It will stink for the first several hours you run the motor as the new burns off. An installation video would be helpful, but this is a very basic install. Mine had poorly modified in the past by a previous owner and I had to do some quick research to get the choke connections right.
Date published: 2017-02-22
Rated 3 out of 5 by from Not great but it works. Sorta. Lots of paint, had to use rotary tool to take off all the paint on the manifold side. I was unable to get all the bolts in because the holes on the manifold did not line up well - I would have had to take a drill press to it but I do not own one of those, so it is on with 6 bolts instead of 10/11. Better than what I had, but had I had access to a decent original I would have rather had that.
Date published: 2016-05-03
Rated 3 out of 5 by from It works, after much fiddling. It was not easy trying to get this to bolt on, the casting around the bottom holes didn't leave enough room to get a socket in there. Had to find the thinnest walled socket and still had issues. Also a couple holes had alignment issues. Had to make them slightly bigger. Never had to buy a new one so maybe this is common.
Date published: 2016-04-06
Rated 5 out of 5 by from quality casting Surprisingly high quality low cost casting for my 1966 mustang restoration. The studs are not standard so don't waist your time extracting the ones from your old manifold. Get the ones from CJ even though they are overpriced.
Date published: 2015-10-23
Rated 4 out of 5 by from Good fit, replacement for '62 "flat gasket" style I needed a "donut gasket" style exhaust manifold to replace the original "flat gasket" style manifold on a 170ci 1962 inline 6. This matched up perfectly. The only problem I had was that the bolt flanges were much thicker than the old stock ones so I had to buy longer bolts. Everything else went fine. I found this exact item for sale on four other web sites and no one had a better price. It was shipped fast and packaged well.
Date published: 2017-04-11
Rated 4 out of 5 by from Does what it's supposed to do Fit perfectly with one exception : The bolt holes for the exhaust pipe connection were a different size than the original. Also, the interior threads were painted, causing difficulty in finding the right size bolts.
Date published: 2015-04-07
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Product Questions

Just wondering if this would fit a 1978 ford 200ci inline 6? Online vendors advertise headers as fitting 1963 - 1983...

Asked by: kaylain
The vendor has not provided any information regarding cross-fitments of this part to any other model then what is listed.
Answered by: rk cjpp
Date published: 2016-10-14

how do i know if i have imco

Asked by: steve stewart
The easiest way to tell is look at the distributor, if it has a single port on the vacuum advance it does not have imco, if it has dual port on vacuum the advance it has imco.
Answered by: rk cjpp
Date published: 2017-02-19

will this manifold fit a ford inline-six 10666-L-31-HT that was installed on a owatanna swather

Asked by: woodsman
The vendor has not provided any information regarding cross-fitments of this part to any other model then what is listed.
Answered by: rk cjpp
Date published: 2016-04-30

Hello.  I would like to purchase this manifold but after reading the reviews I became concerned.  Are the issues with alignment, hole sizes and blockages addressed?

Asked by: Rick1973
There really aren't any issues to be addressed - the manifold isn't an issue for the large majority of customers.
Answered by: CJ Pony Parts
Date published: 2017-01-27

What is the part # EXM2 and what else is needed to convert a 65 6 cyl. to the larger size exhaust??

Asked by: Herkimer
CJ's doesn't offer an EXM2 part number. If you want a larger size exhaust, you'll need to browse our selection and find a kit that works within your Mustang's specifications. We have multiple options that you can choose from.
Answered by: CJ Pony Parts
Date published: 2015-07-07

what is imco

Asked by: buddy82
Emissions equipment.
Answered by: CJ Pony Parts
Date published: 2016-05-30

Hi   do you have the manifold studs and nuts in stock for this manifold ?             Kind regards gary

Asked by: gazman
No they do not. The #F522 stud/nut kit on their website has 7/16-14 UNC threads (they will fit stock OEM manifolds only). The tapped holes in the 6-Cylinder 170/200 cubic inch #EXM1 after market manifold they sell has 3/8-16 UNC threads. You will have to either drill out the manifold holes and re-tap to 7/16-14 UNC (drill/tap at your own risk) or source 3/8-16 UNC x 2 1/4" long hardened studs and lock nuts. They are aware of this issue. They should mention this on their part description.
Answered by: RestorationGuy66
Date published: 2017-06-13

Does this manifold have the hole for automatic choke?

Asked by: Fireball
It has a 3/16" hole. OEM auto choke hole is 1/4". Check your auto choke heat riser tube before drilling manifold hole.
Answered by: RestorationGuy66
Date published: 2015-04-12
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