76-81 ford fairmont swap to a v8? - Ford Muscle Forums : Ford Muscle Cars Tech Forum
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Old 09-11-2006, 08:32 PM   #1 (permalink)
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76-81 ford fairmont swap to a v8?

I just got a free 1981 ford f150 with a fresh carbed 302/5.0sb the truck also has a fresh auto trans.

My quetions is will the 302 and trans fit in a 76-88 4-door fairmont v6 auto, and if so how hard is the swap; and do they make any performance parts for the fairmont "like suspension?"

Any information on this swap would be a great help.
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Old 09-12-2006, 03:45 AM   #2 (permalink)
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76-81 ford fairmont swap to a v8?

You will find a stright six in the fairmont not a V6. To do the swap you will need a new K-member. The fairmont is a fox body so anything that fits a Mustang will fit the fairmont. If you have a carb on the fairmont it is a very easy swap.
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Old 09-12-2006, 05:06 AM   #3 (permalink)
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76-81 ford fairmont swap to a v8?

You dont necessarily need a new K member, but it helps. Ours has the I-6 K member still in it but the mounts are different and the rear is shaped a little differently, but it WILL work if you know how to fabricate stuff.

I'd like to find a '78 Futura with a 4 cylinder!
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Old 09-12-2006, 11:38 AM   #4 (permalink)
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76-81 ford fairmont swap to a v8?

swap out the crossmember. It's easy to do and 4 or V-8 ones are the same. Big thing is what are your intended use? If a little racing, just go tubar and coilovers and make more room and get rid of some wait.
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Old 09-12-2006, 12:42 PM   #5 (permalink)
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76-81 ford fairmont swap to a v8?

Ok some what years of the mustang were fox body?

Also my goal for the car is to keep it looking stock, once the v8 and trans are swapped in and the car runs great; I am going to build the 302 into a 347ci stocker that make 400+hp(on pump gas) and then add a 100 shot of nos. I want the car to be a fast sleeper that I can drive daily if I wanted.

Also how much does the fairmont weigh?

[ This Message was edited by: buickbear on 9/13/06 3:43am ]
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Old 09-12-2006, 12:44 PM   #6 (permalink)
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76-81 ford fairmont swap to a v8?

Oh what other parts will I need besides the k member?

Motor mounts/radiator/bigger fuel pump?
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Old 09-12-2006, 05:04 PM   #7 (permalink)
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76-81 ford fairmont swap to a v8?

Is this what you are thinking about:







Please click here to check out my 78 Zephyr at my crappy Cardomain webpage

Paul

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Old 09-12-2006, 05:45 PM   #8 (permalink)
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76-81 ford fairmont swap to a v8?

Fox body mustangs are from 79-93 . some things from the 94-04 will work but it's easier to stay with the 79-93 stuff. as far as front end use the latest stuff you can find. the 1987 and up k-member has better geometry then the earlier stuff.
Your duraspark box and all the wiring will hook up to a V8 duraspark distributor so you will not need to do any wiring except for the alternator or A/C if you use that. With that kind of power you will need to upgrade the fuel system for sure. This is an easy swap.
P.S. your radiator will work with the V8.

[ This Message was edited by: Freddie on 9/13/06 8:47am ]
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Old 09-12-2006, 07:56 PM   #9 (permalink)
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76-81 ford fairmont swap to a v8?

Quote:
On 2006-09-12 05:06, mavman wrote:
You dont necessarily need a new K member, but it helps. Ours has the I-6 K member still in it but the mounts are different and the rear is shaped a little differently, but it WILL work if you know how to fabricate stuff.

I'd like to find a '78 Futura with a 4 cylinder!
There was a shop here in town that had a Ford "Durango" with a 2.3 carb'd turbo and 4 spd. trans.
A Durango is kinda like a Ranchero in the Fairmont bodystyle.
I used to see the guy speeding through town in it quite often, then for some reason or other, it burned to the ground.
I later seen the burned shell at the scrap yard sitting in a pile with other cars stacked on top of it.
Never seen another one since.
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Old 09-12-2006, 08:13 PM   #10 (permalink)
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76-81 ford fairmont swap to a v8?

Quote:
There was a shop here in town that had a Ford "Durango" with a 2.3 carb'd turbo and 4 spd. trans.
A Durango is kinda like a Ranchero in the Fairmont bodystyle.
I used to see the guy speeding through town in it quite often, then for some reason or other, it burned to the ground.
I later seen the burned shell at the scrap yard sitting in a pile with other cars stacked on top of it.
Never seen another one since.
Well if it was a 2.3 turbo, that explains why it burnt! The SVO I had....electrical gremlins out the ka-zoo, but it ran like a raped ape (when it ran). I'd love to find another Fairmont with a 2.3 and do some engine work. I have a friend that has a '78 that originally came with a 2.3 and a 4 speed. He won't sell it to me for anything! He's working on gathering parts for a big block swap.

Believe it or not, those old fairmonts are pretty light for being a large bodied car. Dad's weighed 2626 the day we picked it up, complete with a pile of someone's wet clothes that was still stashed in that HUGE trunk. It had a 250/C4. I drove that thing to the truck scale, weighed it and put in another 3 quarts of oil (to make up for what leaked out/burned in the last 15 minutes), and drove it home where the engine was rattling. Total trip was...about 18 miles give or take, including the detour to the scales. When I pulled in the driveway it was out of oil. Basically, his is still the stock body & floors, but we put in a leaf spring rear end. Why leafs? Because at that time, we had no idea that the factory Triangulated 4-link was basically the same as the FOX mustangs. We just ripped the stuff out (including the POS 7.5 rear end) and fabbed in a 8" from a Maverick. We've since gone to a 9" for better gear selection. It's running 28x9 slicks that tuck nicely under the quarters. I would be nicer if it had a set of 14x32's, IMO. If I knew then what I know now (about the factory rear suspension) than Id have left it alone, but with adjustable uppers & lowers. I did some figures on paper and based on what I "figured", the factory rear suspension is pretty well set up in reguards to instant center, for drag racing. Keep in mind that the Futuras had aluminum bumpers from the factory...fairly light to begin with...and they can be gutted down even further. I would suspect that it would be possible to get it down to around 2000 lbs with some careful work. Even with a mild 302 that would be a great sleeper!

There used to be a guy here in town that did up a '79 Futura complete with a 4.6 SOHC from a '00 Mustang, 5 speed trans, all the mustang stuff. I'm sure he just swapped K members. I saw him once down at O'Reilly's but never got to talk to the guy much. Neat project. Someone T-boned him at an intersection not far from my house and demolished the car. The driver at fault ran the red light...which I've seen literally hundreds of times at that intersection. The Fairmont was totalled and the driver spent quite a bit of time in the hospital, and then went on to a LOT of therapy afterwards. It is my understanding that he still is not 100% 2 1/2 years later.

Interestingly enough, Bob Glidden won a LOT of races in a Fairmont Futura. Someday, I would like to backhalf Dad's car and make it into a replica of Bob's 1979 car except the engine. Dad still thinks that his 347 is going to run great. It very well might...at least until it spilts the block. If it were me, I'd have put a 408 in it and been done with it.

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Old 09-13-2006, 12:32 PM   #11 (permalink)
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76-81 ford fairmont swap to a v8?

Thanks for all the info.

Can you still use the A/C or does it have to be removed?

Also will fox body subframe connects fit the fairmont?

P.S. nice car pics.
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Old 09-13-2006, 02:10 PM   #12 (permalink)
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76-81 ford fairmont swap to a v8?

Yes to both questions..
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Old 09-13-2006, 04:00 PM   #13 (permalink)
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76-81 ford fairmont swap to a v8?

You may want to look at this.

http://www.geocities.com/stymeesmont/Infoandtech.html



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Old 09-13-2006, 04:29 PM   #14 (permalink)
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76-81 ford fairmont swap to a v8?

cool project. i had a bare bones 79 zeph, 4 cyl, 4 speed with manual everything, had a 79 fairmont futura, and now my new project, a 79 boxtop fairmont

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Old 09-14-2006, 03:09 PM   #15 (permalink)
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76-81 ford fairmont swap to a v8?

Ok so since the donor truck has the right motor mounts I can use the 6cyc k-member with the different oil pan.

After I get the car running and the motor done I will look into getting a tub v8 k-member, and build it for road racing.

How well do these cars handle.

Also why car people not doing more of these cars?

A fairmont would make a great Car Craft or Hot Rod project car.




Thanks for the info

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