Crate Engines: Powerful and Classic Chevy Race Engines | Chevrolet
I was looking at the LTG, a small 150 Cubic Inch Turbocharged Chevy V8 capable of putting out 272 horsepower for $9,000 and I know for that price I could get something that has that horsepower, but I don't want some BMW with 270 hp for 9 grand, I want a Jaguar X-Type with that much horsepower. my Jag is the 2.5L V6 (152 or 153 cubic inch) engine, so could the smaller, stronger V8 be put in?

 

As it turns out, the engine I was looking at said V8, but upon further research was a 150 cu. inch turbocharged 2.0L I4

 

Too much horsepower and torque might eat up the X-Type's fairly fragile drive train.

 

Bud Tender
There was a guy who Supercharged the 3.0L version and got 315hp, I'm thinking of putting in a smaller, but turbocharged engine with 272hp, with a lower compression rate.

 

Yeah, that much horsepower would likely splay the contents of the Transfer Case across all four crosswalks of an intersection!

Might be fun, for a "one up" sort of deal. Instant carnage.

 

Zalami, could you? Sure. With enough money and time, you can make just about anything fit. But, keep in mind that you are looking at $9K for just the engine. Plan on another $2K in modifications to make the motor work. Then you still have to figure out how to make the new motor attach to the transfer case or adapt some aftermarket case work with the Jaguar driveline. I can see this getting fairly expensive and still having a big question mark at the end.

As for the fragile driveline, from doing some talking with people and lots of brain storming between the group, it appears that the transfer cases were built with too much pre-load on the bearings which lead to the issues. So, you will need to look into rebuilding the transfer case too so that the proper pre-load can be put on the bearings. Once you do that, you can more than likely take a 3.0L motor and crank it up to make lots of power. I think this will be a more reliable setup and also come with a much lower price tag. The big thing then is simply pulling the motor/tranny/transfer case and upgrading them as needed to handle the extra power. The motor will need new pistons so you can drop the compression ratio down to say around 9.0 which will be more turbo friendly, a shift kit in the tranny to help firm up the shifts and minimize slippage (and therefore heat generation), and the bearing pre-load adjustments. I think you do those things, you will have something that will be a nice sleeper.

 

Save a few more dollars and buy my SRT6 Crossfire.

With its modified supercharged AMG engine you will have about 400 HP and a full system that is designed to handle that much power.

Oh, and the top will go down.

Honestly as a guy that has owned many modified cars, a Volvo R model would be a much better option and get you all but the exclusivity.

 

I would go with turbo/supercharged 3.0

Forged pistons low compression 8.5:1 $ 999
Forged rods $ 599
Tri-metal bearing kit rods and mains $ 119
ARP cylinder stud and nut kit $ 209

Stage 1 turbo kit 3-5 psi $ 2999 Up to 80 hp
Stage 2 turbo kit intercooled 7-12 psi $ 3995 Up to 155 hp
Stage 3 turbo kit intercooled 7-20 psi $ 4995 Can handle up to 600 hp total.

Firewall side exhaust manifold may not fit because of the TC but you could let someone weld you a new one and it would still be cheaper and more power. I don't know about original ECM, if it can be programmed to work with it, it should as it has 2 wideband lambdas, MAP and knock sensors.

 

I have got the ultimate solution to get you even more than you want at probably lots less money.

Buy the lowest mileage S-Type R you can find and transfer over your all wheel drive components or those from an all wheel drive German Sierra (European Merkur Scorpio).

Still a Jaguar. A very fast V8. All wheel drive. Extreme exclusivity. Maybe even doable.

 

Ford Sierra and Scorpio use a MT-75 gearbox with front diff which mounts to oil pan and half shaft going through it which won't fit to S-Type.

 

Just a thought, but you would probably be best off to simply grab the AWD system from say an XF and put that into the X-Type as it will all be all Jag, the newer cars are using a supercharged 3.0L motor (so, very possible it will simply bolt up to the motor mounts it has already) and getting it to work with the computer should be much easier as it will be using a lot of the same parts most likely. Can't say that I have heard of any issues with the new transfer cases.

Then all that you would have to overcome is getting a custom set of front CV joints (actually pretty easy to come by) and then adapting a rear drive shaft to attach to the transfer case (again, in the big scheme of things, pretty easy).

 

I have the same thought as Thermo; Why don't look in the Jaguar line of engines that make high HP, most of Jaguar V6 were build @ 3.0L with turbo put out 300+HP, they're a lots easier to play with.