Tbird Jaguar S Type Engine Swap

[worldclasswheels]

OK Guys and Gals I need some Help with this one . The 3.9 Tbird and LS Engine looks exactly like my Wifes 4.0 Jaguar S Type Engine. My question is can I put a Tbird Motor 3.9 L in My Wifes 2000 Jaguar S type? I have been told you just change the intake manifold is this True? I Blew the Engine in my Wifes Jaguar S Type Last night Driving like I was 16 once again, Ive been in the Dog House ever since Please Help. Thanks, Rick

[Vegas Retrobird]

Re: Tbird Jaguar S Type Engine Swap

But then you won't be able to drive your Bird.

[worldclasswheels]

Re: Tbird Jaguar S Type Engine Swap

Hi Will, I can Buy Tbird and LS motors a lot cheaper than a Jaguar motor, I would never take it out of my Tbird. Thanks, Rick

[Vegas Retrobird]

Re: Tbird Jaguar S Type Engine Swap

Hi Will, I can Buy Tbird and LS motors a lot cheaper than a Jaguar motor, I would never take it out of my Tbird. Thanks, Rick

Ah, gotcha! I don't know much about engines, but good luck with your situation!

[5bird7]

Re: Tbird Jaguar S Type Engine Swap

I think the problem is how the computer talks to the two different engines and why we haven't seen others doing it by now. - they run on two different computer languages/systems - don't quite understand it myself but maybe Jim Youngs (retiredfordguy) could give you an insight on it.

[Chuck]

Re: Tbird Jaguar S Type Engine Swap

I asked Jim that question in reverse, he mentioned the same thing Dot said, and told me because of that I would also have to swap out most of the electrical components as well as the transmission and rear end. Now I was inquiring about putting the super charged version of the Jag 4.0 in the Bird.

[lostjohn]

Re: Tbird Jaguar S Type Engine Swap

You can a 3.9 t-bird engine 50k miles on Ebay $1500 obo in N.C.

[Leroy]

Re: Tbird Jaguar S Type Engine Swap

You're going to have more money and man-hours in the car than it's worth by swapping engines. Either find another Jag engine or rebuild the one you blew. Leroy

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[worldclasswheels]

Re: Tbird Jaguar S Type Engine Swap

Thanks for all your Ideas so far, will the Jaguar heads fit on the 3.9 Block?

[Leroy]

Re: Tbird Jaguar S Type Engine Swap

I believe the Jag engine is smaller than 3.9, the bolt pattern might be the same, but the Jag pistons are smaller so the heads may be different. Leroy

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[Lonestar]

Re: Tbird Jaguar S Type Engine Swap

With rev limiters and etc. I would be interested in knowing just how you blew it up. Please tell.

[worldclasswheels]

Re: Tbird Jaguar S Type Engine Swap

It sounded like a valve broke or a Timing chain causing severe bent valves, I will let you know what happened when I tear it down. Thanks, Rick

[00mustng]

Re: Tbird Jaguar S Type Engine Swap

....Here's some bits and pieces, Rick....Jaguar AJ-V8.....known as the AJ28 in the 2000 -2002 S-Type...It has 86mm bore and stroke...4.0L 3996cc c/w variable valve timing.....Then there is the AJ30/AJ35...3.9L 3934cc built in Lima OH engine plant...Bore is86mm stroke is 85mm. AJ35 introduced in 2003...with vvt, electronic throttle control..while the block,crankshaft and pistons,and connecting rods are all unique to this displacement, many other parts are shared with the AJ-V8 engines produced in the U.K. by Jaguar....Cheers!

[jaguar72]

Re: Tbird Jaguar S Type Engine Swap

What year is your wife's S-Type? How many miles? Early (prior to mid 2001 or 2002 I think, but I did not check for sure...) Jaguar V-8s had some known timing upper chain tensioner problems (the nylon/plastic tensioner facing would crack and then depart the tensioner) which could lead to exactly the problem (bent valves, etc) that you just experienced.

V/R,

Jaguar72

[worldclasswheels]

Re: Tbird Jaguar S Type Engine Swap

Hi, Jaguar 72, Thank You, Martin for your help, my Wifes car is a 2000 S type, I will tear it down this week end and let you know what I come across. Thanks again, Rick