3.7 cyclone to 5.0 coyote swap - Mustang Evolution

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Old 01-21-2018, 03:53 PM   #1
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3.7 cyclone to 5.0 coyote swap

Hey all,

So long story short, I've decided after a long time that I want to swap my current 2015 mustang 3.7 V6 cyclone with a 5.0 V8 coyote engine.

I know that its going to cost a lot more then selling the car and buying another GT, but I simply cannot do so as its financed and im not looking to trade it in.

Money is not really an issue, I already have a few contacts including AmericanMuscle who sell the crate factory engines including the 5.0's.

What else is needed besides the engine itself? Will everything from the engine to the rear end of the car need to be replaced?

I just want to make sure I know what im jumping into before I get going on this project...

Any help is appreciated from you mustang guys, thanks!
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Old 01-21-2018, 04:06 PM   #2
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New Suspension, Power train, Transmission, Possibly Upgrade All Electronic Gauges,Upgrade your car insurance, if they will cover the upgrades. You may have to go to Custom Car insurance.

Just a start.

So now that idea is gone, enjoy your V6 and put all that money in the bank, so you can buy that V8 in a couple of years.
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Old 01-21-2018, 04:17 PM   #3
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Hey all,

So long story short, I've decided after a long time that I want to swap my current 2015 mustang 3.7 V6 cyclone with a 5.0 V8 coyote engine.

I know that its going to cost a lot more then selling the car and buying another GT, but I simply cannot do so as its financed and im not looking to trade it in.

Money is not really an issue, I already have a few contacts including AmericanMuscle who sell the crate factory engines including the 5.0's.

What else is needed besides the engine itself? Will everything from the engine to the rear end of the car need to be replaced?

I just want to make sure I know what im jumping into before I get going on this project...

Any help is appreciated from you mustang guys, thanks!
1 - if the vehicle is financed and you can't afford to sell it and buy a GT then sure as hell can't afford to do the swap.

2 - American Muscle is just a distributor and going downhill at that. Calling them a "contact" is like saying the dude at Autozone down the street is a "contact".

3 - If money isn't an issue then you wouldn't have an issue paying off the V6 and getting a GT.

4 - New engine from AM or whoever will be in the $7k range. You need a $1500 harness, $2000 worth of exhaust and then probably another $2k worth of misc.

5 - Sell it and get a GT. If you can't afford that then keep driving it till its paid off then get a GT.

I probably sound super negative to you but I'm just being real. Sell it and buy a GT. If you can't afford that you can't afford the swap. The 3.7 is actually a very quick street car, get some gears and a good tune/exhaust and enjoy it.
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Old 01-21-2018, 04:26 PM   #4
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I know that its going to cost a lot more then selling the car and buying another GT, but I simply cannot do so as its financed and im not looking to trade it in.

Money is not really an issue, I already have a few contacts including AmericanMuscle who sell the crate factory engines including the 5.0's.
You mention that money is not an issue, yet you can't buy a GT because your V6 is financed.....

I'm only aware of one individual that has actually done a 3.7 to 5.0 swap and they ended up having so much money into it that, had they sold their 3.7 and used the money they dumped into the swap, they could have been damn close to being able to buy a nice used GT500.

If you just want more power, go with a turbo setup. If you want the GT experience, sell your car and buy a GT.
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Old 01-21-2018, 05:35 PM   #5
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Either boost the 3.7 which is far cheaper. Or trade your car in for a 5.0. Realistically those are the best 2 ways.
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Old 01-21-2018, 05:51 PM   #6
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Thanks guys...

Think i'm going to keep saving for a 11-14 GT or a 05-09 GT500.

Seems too time consuming and a huge headache.
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Old 01-21-2018, 05:57 PM   #7
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Spray it.👍👍👍 why you save for the new 5.0

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Old 01-21-2018, 06:55 PM   #8
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Thanks guys...

Think i'm going to keep saving for a 11-14 GT or a 05-09 GT500.

Seems too time consuming and a huge headache.
There were no 05 or 06 GT500s, the new ones were 07-14.

And if you can't afford to pay off a 3.7L you might not want to see what insurance companies will charge you for a GT500 especially if you are under 25 or have any points.

TBTH just enjoy the car you have and look to save for a new one IMO. The 11-14 GTs were neck and neck with the 07-12 GT500s performance wise and the 2018s will pull their paint off if we are talking stock for stock. Plus you'll get a better interest rate.
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Old 01-22-2018, 02:07 PM   #9
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If money is no issue than you can afford to pay it off and trade it in to get a car that will not be cobbled together and always chasing issues.
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Old 01-22-2018, 03:06 PM   #10
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If I were going to do a swap from a 3.7 to a v8, it would be a 427 crate motor from Ford
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Old 01-22-2018, 04:04 PM   #11
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If I had a 3.7 that I absolutely refused to sell for whatever reason I'd just turbo it but even then you are probably going to be paying more than you would just selling it and buying a GT.

If you are upside down on the car where you can't sell it for what you owe... keep driving it, enjoy having basically what the 3V and 4V NA Mustangs were from 1996-2010 power wise and maybe do some basic mods to make it quicker and handle better. A well tuned and sorted Cyclone is not exactly slow especially on a road course.
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Old 01-22-2018, 05:39 PM   #12
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Though a JMP rear mount kit starts at 3000. For 4200 I think it is that includes everything plus tune. Assuming he can install it himself. Though if I was him and thats the route I went Id source the tuning and injectors elsewhere and save about 400 bucks.
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Old 01-22-2018, 10:32 PM   #13
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Why in the world would anyone run a rear mounted kit on a car with room in the engine bay?
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Old 01-23-2018, 02:27 AM   #14
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Because they saw it on the powerblock and actually believed those guys use the parts they are paid to shill?
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Old 01-23-2018, 05:25 PM   #15
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I like rear mount setups personally.

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Old 01-23-2018, 05:28 PM   #16
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I like rear mount setups personally.

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Because i know you're probably one of the few who can back it up, i'm interested in the reasoning.
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Old 01-23-2018, 06:24 PM   #17
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Because i know you're probably one of the few who can back it up, i'm interested in the reasoning.
Nothing technical other than heat from me. Mainly just a fan of the looks on a vette personally.

Deffently alot of disadvantages though.

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Old 01-23-2018, 07:42 PM   #18
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Fair enough.
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Old 01-23-2018, 07:56 PM   #19
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Fair enough.
I have never tuned a rear mount setup personally, so I couldn't give you any technical info on one compared to a normal single or twin kit on the same platform.

I only deal with your traditonal single and twin kits. So far.

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Old 01-23-2018, 08:18 PM   #20
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Why in the world would anyone run a rear mounted kit on a car with room in the engine bay?
I've seen some rear mounts kits perform pretty well even have minimum turbo lag. It's personally not my thing for a few reasons. But they still have potential and the guy who's engineered the kit has done pretty damn good work with his other kits.
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Old 01-23-2018, 09:02 PM   #21
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I've seen some rear mounts kits perform pretty well even have minimum turbo lag. It's personally not my thing for a few reasons. But they still have potential and the guy who's engineered the kit has done pretty damn good work with his other kits.
I'm sure it can be made well, but when you can have the turbos right off the head, or a short manifold you will get better response. There's just no way a rear mounted kit can match response unless it's undersized. There's also the added weight and all the space the extra plumbing takes up.

On some cars it makes sense, but on a mustang, (especially a 60* v6) it just doesnt. I'm not saying they cant be done successfully, i'm just saying its different for the sake of being different but not much else - In my opinion.
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Old 01-24-2018, 06:38 AM   #22
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I like rear mount

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poor impulse control
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Old 01-24-2018, 11:16 AM   #23
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poor impulse control
Giggity. I have to have impulse control here... lots of darker skinned toned European women in tight jeans and yoga pants all over the place here...

What are we talking about cars?
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Old 01-24-2018, 12:12 PM   #24
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No no no, we can keep talking about what you're talking about.
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Old 01-24-2018, 01:19 PM   #25
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Its bad... like... its bad now and in the summer I'm probably going to feel like Quagmire... This place is the Spanish "south beach" in the summer and I'm about to close a rental contract on beachfront property.

I'm a married spud...
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Old 01-24-2018, 03:01 PM   #26
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Its bad... like... its bad now and in the summer I'm probably going to feel like Quagmire... This place is the Spanish "south beach" in the summer and I'm about to close a rental contract on beachfront property.

I'm a married spud...
Pics or it didn't happen....
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Old 01-24-2018, 04:21 PM   #27
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Lol I'm not that creepy to be snapping pics of women like that. I'll get pics of the house when we close on it tho.
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