Exhaust Manifold Without Imco 170/200 1965-1967

CJ's Part Number: EXM1
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1454889600 13197
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Exhaust Manifold Without Imco 170/200 1965-1967

Product Description

Exhaust Manifold without IMCO for 1965-1967 Mustangs with a 170 or 200 6 Cylinder Engine.

This is a direct replacement cast exhaust manifold for your rusted or damaged original. Designed for Mustangs without IMCO(emissions equipment).

Similar Mustang Parts

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Installation Instructions

Mustang Installation

Mustang Applications

This product will fit the following Ford Mustang years:

Product Reviews

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Exhaust Manifold Without Imco 170/200 1965-1967 is rated 3.6 out of 5 by 5.
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 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 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
Rated 3 out of 5 by from Not a good product Poor casting and the threads where the exhaust bots up are not correct for the original mounting studs or the ones sold by CJ Pony
Date published: 2015-05-09
Rated 5 out of 5 by from excellent replacement with cast numbers Purchased this over a year ago, installed and no issues since.
Date published: 2015-01-08
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Product Questions


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: 2015-12-31

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: 2015-09-29

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: 2015-07-06

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: 2015-04-12

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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