I’ve been doing a lot of research on the 2011 mustang 5.0 and the XF xfr headers and they are almost identical except for one flange is turned the opposite way. I am tempted to buy a set of long tubes off a mustang and try them out. About me I built several high horse power mustangs and turned a 2005 mustang roush into a 2011 gt500 using all the car wiring and interior and got it to work. So this isn’t nothing that scares me in anyway. I was just wondering has anyone else tried this? Also has anyone attempted to install a pulley off a gt500 onto this? I’ve got a extra one laying around and the blower part numbers are the same so since ford still was building the motor till 2019 it only makes sense for them to only change minor motor things to make it different. So far the timming comments are the same and can be purchased by mmr using billet pieces. I’m fairly new to the jag game but hip to ford so I think this could be interesting to find out. So far when doing the plugs the motors heads look a lot alike and doing what research is out where they basically are a minor redesigned modular 5.0 that ford uses. Unless I am completely wrong am I?

Here is the story from the mustang that I just sold to get into this game lol

https://www.stangtv.com/tag/mustang-swap/

 

This has been discussed and debated many times before, but put simply there are absolutely no common parts between the Jag AJ133 engine and the Mustang 5.0.
The Jag engine uses a fair number of FoMoCo stamped parts purely because it is built in the Ford engine plant in Bridgend in the UK.

 

Ford does still or did build the motor for tata up till this year so how could it be debunked or has it not tried been just discussed? I’m just asking like I said I’m new to this but my understanding is that ford had the drivetrain till 2019. Right

 

The first place to start would be to get your hands on an exhaust manifold gasket from each engine and see if they match up, as far as the ports and stud locations.

 

Not really right, no. Very misleading to put it that way.

The AJ133 (as the AJ33/34/...) is not a Ford-created engine other than they owned the company at the time.

Cambo's idea looks good and affordable.

 

These are unbelievably sexy, I have their mufflers and they are excellent. Wanna save up for these haha https://ardent-performance.com/colle...exhaust-header

 

Realizing this is an older thread, I wanted to see if you ever tried anything with the Coyote headers? I’m close to wrapping my project up and am now looking at the exhaust. The Ardent headers are beautiful, but I can’t swing $4K for a set with cats.

BUT….if your theory is right, I can totally cut and re-weld a flange! Anything Ford/Coyote is WAY cheaper than Jag/LR. (Full disclosure, I’m working on a LR with the 5.0SC in it.)

 

He is not right and dropped out years ago without doing anything.
Read what OzXFR posted above. This is a common urban myth that just won't die.

I agree with JagV8. Follow Cambo's suggestion and post back. Notice the OP did not!
.
.
.

 

I totally agree there's not really much...if anything at all that'll cross over. That said, I'm looking into the possibility of running some Coyote pistons and rods in the AJ block. Thus far everything is a "close" fit, but not quite. The compression height of the Coyote is slightly taller than the AJ, but the bore is the same(ish). The rods are shorter and in theory with a slightly thicker head gasket it'll all work....except the fact that the crank end of the Coyote rod is slightly smaller, and the rod itself is 4mm thicker....so you know, lots to over come just to have "cheaper" aftermarket rods for this engine. AKA, I don't want to pay VAP $7K for rods and pistons. Heck, when I talked to CP Carrillo (they make VAP's stuff), it was only gonna cost like $4-$5K for a full custom build....but I guess VAPs gotta make money too.

All that is to say, if the exhaust porting on the coyote lines up, it's not too difficult to have a new exhaust flange made and welded onto an exiting header. My guess is that, just like everything else, it'll be off "just enough" to make it A LOT cheaper to just go with Ardent's headers.

Honestly, this isn't something I had ever even considered, just stumbled across the thread and I was just hoping the OP had looked into it as I don't really want to shell out the $ for a coyote manifold, "just to check."

Thanks for the input!

 

Would be far easier and less frustrating to just simply purchase a 5 litre Mustang. Ford is also now making them with RHD.

 

If I'm going to shell out the cash for a sports car, it sure isn't gonna be a mustang! LOL!

At the end of the day, I like the AJ133 engine, but I also understand there aren't that many of us who want to tune these as they're all in luxury brands. And let's be honest, most wrench turners don't buy luxury brands because if you put "performance" in front of it, it's already expensive. They buy Fords and Hondas....may some Bimmer and Subaru guys too. My point was simply to see if a short cut existed...but as has been the case 100 out of 100 times with these engines....there are NO shortcuts and everything is three times the cost.

I guess, the only other driving factor behind my search for anything that'll crossover is simply quality control. I've been seeing a lot of aftermarket parts starting to show up for these engines, but they're mostly from one particular country overseas and they're not worth half what you pay for them. (trust me, I've tried a few and they either don't work, don't fit or break after 3 trips in the vehicle) So, if I can find something other than a stock valve or piston or whatever, that I can get from say CP Carillo or a company of equal legitimacy, I'll know the quality and longevity is there.

Right now I'm still working the kinks out of my SC transplanted LR4. I'm also working with Delta PAG to design a new cooling system for the engine that'll include a hybrid radiator/intercooler, electric water pump and electric fans. Most importantly though, it'll allow me to drastically simplify the AJ's cooling system and do away with the thermostat and half the hoses running all over everywhere. Oh, and it'll get rid of half the front crossover tube! It's a work in progress, and time will tell if it's going to be dependable or not, but I like the direction it's heading in. I'm really hoping I can adapt it to my 2010 LR4 with the NA engine in it...depends on if I have enough room to route the return hoses out the front of the engine by running a smaller pump pulley.
I do worry though, about ditching the viscous fan in case I decide to tow heavy with the LR4, I'm not sure the electric fans can keep up. But, as I understand it, you gents (aka Jag owners) have had electric fans on your engines for a while now with no issues...so there's that.

 

Hey I love the idea of headers for these 5.0L cars!
But don't re-invent the wheel!

Here is a beautifully fabricated set and it should fit you XF as they were made to fit the XFR-S.




In case you have not heard of Ardent before they are a well known UK supplier of (EXPENSIVE) Jaguar upgrades. All of it top notch quality too.

Just look at those welds. Nice just nice!





And it all fits into the stock setup.





And of course now comes the fun part! Price!
They are about $3K a set without cats.
Check out the other parts while your there.

Ardent Jaguar Parts
.
.
.

 

I have these headers on my XFR-S. The do make the car louder and change the note a little. Mine are the catted version, but you'll still need a tune to deal with the P0420 that you'll get from going to the high flo cats.

 

These exhausts are not UK based. They are made in Arizona. I've been in their shop. They installed these headers on my XFR-S.

 

yeah, I have NO DOUBT they are awesome! I just can’t swing $4K for the headers alone right now. (It’ll be for my DD, and I live in an inspection state so I have to get the catted version).

I was just hoping to find a slightly more budget friendly header. Plus, as my application is an LR4, I’m not 100% they’ll fit…I mean, they should…I’d just be really upset if I got them here and then ran into an interference issue.

if I win the lottery, I’m in!!

 

Hey thanks for that extra background but can we purchase them in the US? Is Ardent only in the UK. They have been supplying Jaguar performance stuff for a few years at least.
Do you think there was much power gain?
.
.
.

 

I believe Ardent is out of the US, Phoenix Arizona.

as for the performance gains, I don’t imagine it’s much…maybe 5-10HP at the wheels, but what you will see by opening up the exhaust is a HUGE reduction in back pressure and heat soak associated with overdriving the supercharger. That in and of itself makes it worth the cost.

 

What tapps33 said. All of it. LOL.