- Seller: Vintage Underground (Contact)
- Location: Eugene, Oregon
- Mileage: 0 Shown
- Chassis #: N/A
- Title Status: Clean
- Engine: 6.0L V12
UPDATE – The seller has added videos of the inside of the engine. You can view them below.
Now this is something you don’t find often! Crate engines are fairly common, at least for major brands like Ford and Chevy, but you rarely come across Jaguar crate engines. This new old stock 6.0-liter V12 was meant to be fitted to a 1993 to 1994 Jaguar XJ40 or XJ81, but ended up in a warehouse instead. The seller purchased it over 20 years ago, and it’s been sitting in their climate-controlled shop ever since. They decided it’s time to make some room in their shop, so this engine needs to go!
It wasn’t uncommon for manufacturers to send rebuilt engines out to dealers to replace a faulty unit under warrenty, but this one isn’t a rebuild, but a brand-new engine. The seller has provided the part number, JLM-11344/N, and the serial number, 8C13937SA, to verify what it is.
When it debuted, the 6.0-liter V12 was Jaguar’s most powerful engine. When used in the XJ40, it was good for 301 horsepower and 336 foot-pounds of torque. This one lacks all the accessory components, but is a complete long block. If you have an XJ with a tired engine, this would be a great way to breathe new life into it. Or, it could be a wild engine to install in a custom build!
If you’d love to have this crate engine, be sure to make the seller an offer. And if you have any questions for them, leave them in the comment section below. So, what car would you put this V12 in?
Interesting find. The ultimate oxymoron would be to swap it into Corvette removing an LS v8. Sorry, bad joke.
yup, agree. Bout time someone “talked back” to small block Chevy lovers that repower an earlier FoMoCo with a shoe-in GM (except for the Buick Nailheads, that was ok). Just think, a Vette with a Jag V12, awesome!
Actually, I was thinking more like an SRT-10 Viper motor in a Jaguar…should be able to shoehorn one into a XJ-S quite nicely.
How bout sister dIvision GM cars that could come with a Chevy V8 – but name me 1 chevy car that could come with 1 of the others’ V8s. I wonder if that ever happened once tho – like a tin indian winding up in a camaro – by mistake.
Kind of like the guy who put a gasoline engine in a Tesla.
Makes me now want to put a Tesla motor in a Lada.
This might be nice in a big old Caddy
For $10,000, you expected the crate as well?
The kids can play in the crate as you and a few buddies are putting it in.
Interesting in theory to install it in something other than a 93-94 Jag, but imagine what the total price tag would be to buy all the peripheral parts, brackets, etc., that would be needed to turn this into a running engine?? You’d probably come out a whole lot cheaper to go buy an entire wrecked 93-94 Jag and extract and rebuild that complete engine, rather than trying to make this one complete.
Not to mention all the fab work necessary to make it fit and operate in something else (as contrasted to an LS swap for which there are a zillion aftermarket companies already making plug-and-play transplant parts).
As the write-up says, a tired 93-94 Jag is a possible home for this engine.
But even that would not make economic sense at $10K. Per Google AI “A 1994 Jaguar XJ XJS V12 value (depending on the specific model and condition) is $3,263 to $7,154 according to Kelley Blue Book.” So it would be hard to justify putting a $10K long block into a car that will be worth $7K when you are done.
But regardless, very interesting, and GLWS !
You could also use it for a Series 3 XJ and XJS, a good quality one of those with a fresh engine would command a good price with the right buyer
I love seeing old motorcycles in their original crate. Always loved the look of those late 80s XJS coupes.
Buy it in the crate and then do an LS swap.
“i need a V-8 ” the old juice commercial undated to “I NEED A V -12 ”
I’m not sure this would make any financial sense even if it was free .
My high school buddy, that has been a Class A automotive mechanic for the last 45 years, was given a running V-12 by a customer. He kicked around the idea of making a coffee table with it. But eventually gave it to one of the scrap dealers, that frequented his shop.
Foolish to throw away an engine like that, with little effort he could has sold it for cash.
If I remember correctly John’s Cars a Jaguar parts supplier did build a swapped GM putting the Jaguar engine in GM car. John’s sold kits to fit GM engines into Jaguars. As a lark they did the swap the other way around. I have wanted to do so for years having worked at a Jaguar dealer and seeing too many Jaguar with GM engines fitted.
I purchased one of those kits from John’s Cars out of Dallas back in the early 1990s. It was $2000 and very complete from radiator, engine, mount, brackets, driveshaft, matching color engine engine wiring loom, etc.
I found a friend of mine a in 1983 XJ6 in very nice condition except the engine was froze up from sitting too long after a blown head gasket. Very impressed with how well everything fit. The 350 CID/350 HP engine was made to a 700 R4 automatic transmission with the overdrive disabled. That combination was a couple of hundred pounds lighter than the original Jaguar engine and transmission.
The Jaguars were notorious for the front end sagging and with the weight savings, the proper right height was restored. Not to mention almost double the original horsepower, it made for a nice package!
I wish we could amend our own comments…in the interim, I need to proofread better.
Intended to say, “The 350 CID/350 HP engine was MATED to a 700 R4 automatic transmission….”
It’s already been done, the Deucari.
https://www.autoevolution.com/news/deucari-the-story-of-the-one-and-only-ferrari-v12-powered-deuce-231093.html
Yes, but I want a Jaguar in a Chevy rather than a Chevy in a Jaguar. Even a 4 door Impala would do. Jaguar used a GM auto transmission behind the V-12 in the XJS. Just to be different at the Cars & Coffee shows when you open the hood.
If that thing isn’t checked carefully before firing it, you can be almost certain it will be an oil burner.
I’d put it a boat and run 6 Weber carbs on it. You know what they say about something that floats……
I’d put it in a boat and run six Weber carbs on it. You know what they say about something that floats……..
The Ford at the bottom of the ocean.
If I had the means I would be buying it to refit my L98 powered Jaguar XJ6C as a Twelve. Whatever it took would not be too much. Manual? Probably a Tremec 5. Jenvey throttle bodies for look of Webers without the headache. I already have a late model XJS rear suspension with the outboard brakes and a 3:54 limited slip in the car.
I would love to see this in that 1936 Ford phaeton convertible that was on here a couple days ago,but I,d have to ask Josh for help wiring it. lol
I’ve got a couple of acquaintances who are building P51 kit planes that use the jag 12 cyl. I betcha one of them will jump all over this…I’ll pass it along.
Now that is frightening. In an aircraft engine I imagine reliability is the most important factor.
Put Rotary motor in a boat!
$10,000 is a bit rich, You can get the V12’s (5.3 & 6.0) rebuilt for about that in the UK, and then its still matching numbers….. I agree though that some should chuck out the old push rod V8’s and stick in a proper motor… ;-) Mind you you’d still wanna remove thje heads and the pan to check everything is OK and hasn’t rusted in places. Having said all that Find me another…
If $10K is the cost of a rebuild, then this brand new motor would be a bargain. How many rebuilds of any engine can have problems? I would trust the original Jaguar factory to produce a better engine than a rebuild. If the new engine turns over smoothly, no need to tear it down, the engine was filled with assembly lube at the factory, so there should be no rust if stored in a dry environment. Also easy to do is examine the cylinders with a boroscope by merely removing spark plugs.
10k for a proper Jaguar v12 rebuild is highly optimistic. Highly. There is just no way you can professionally build a Jag V12 in that range.
No one said E-Type?
I have a 69 E Type ,one of the most mint you will ever see ,has an all aluminum LS -1 in it with 366 RWHP.I wouldn’t put this 12 cyl in it’s place ,if you shipped it with $50 k in the crate !
5 summers of happy and thrilling motoring ,with one breakdown due to a bad ground ,
One-up the the BossHoss boys.
Put it in a Lincoln. There was a lot of synergy going on between Lincoln and Jaguar in the early 2000s. Imagine this in a Town Car. It would be a nod to the Classic V12 Continentals.
PS to my previous post. After consulting Google, Ford did put a V12 in a late nineties Town Car, by cutting two cylinders off each of two 4.6 modular V8’s and welding the blocks together. Four turbochargers, four cams and forty eight valves to make over seven hundred horsepower. Awesome
The main issue with these Jag V12s is that they are very heavy compared to the power rating. Very well built, all in all.
That puts the NOS in new old stock!!
We are prepping a ‘78 XJS V-12, with a TKX 5-speed and twin 4-bbl carburetors, to install in a Studebaker Hawk soon. Really fun and challenging project.