Did you even bother to read the original post?

Not a stroker question.
Not a Supercharger question.
Not a BMW motor question.

 

Forget it, u are too bigot to get along with me.

 

There must be an error, the 4.0 HO is 192 hp stock.

 

at the crank yes it is 190 hp stock but auto tranny, and transfer case yield terrible parasitic power loss, also about your bmw statement saying the replacement for displacement is a turbo/supercharger? well im gonna have to side with frankz on this one because yes straight six's like the supra or bmw with turbo/superchargers on them yield great power and torque but put a turbo/supercharger on a v8? you get even more power, yes there will always be exceptions but you have to be fair bout it you cant give a straight six a 70mm turbo and compare it to a stock gm lsx engine. just nonsense ...take a v8 and a straight six do the same mods to each engine the v8 will win...

 

The only thing you are forgetting is space and weight. What about those?

 

Yes there is. There is plenty of room for the 4.3. My preferred way would have been to use an early Jeep T-5 with cryo treated gears, stock Chevy bell housing for the T-5 and small flywheel. That is the cheapest and cleanest if you are running a standard tranny. After that, if you are going to run an auto get one from a S10 Blazer which will be a 700R4 or 4L60E and run the S10 transfer case. Otherwise, you will have to adapt it to the Jeep tcase. I have mine putting out about 230 hp right now. But figures are deceiving. It is much faster off the line than the 4.0 due to the Chevy tranny. I can hit 60 in about 100 yards. Plan venting the hood to cool it in warm weather.

 

according to the site frankZ posted a turbocharged 4.0 HO kit with intercooler gives 150hp of GAIN, that would be 192+150= 342hp, assuming it is only 100 in reality it still lies around 300hp.

 

What you have been advocating is possible, but not practical. Not from the space and weight prospective but from practicality. You still have to make a 4WD Jeep out of it and I would insist on keeping it a clean installation inside and out. It would take a full CNC machine shop to do what you are advocating. Just not practical or cost effective.

 

Why? the BMW engine is a Borg Warner standard bolt pattern with the 209.55mm pilot, you can fit an enormous variety of trannys on it, one of them is the AW4. For the mounts it is custom work same as a V8 or a V6 swap, and you have more space all around. I wold admit you are right if you said it is a difficult engine to find, that is obvious, but not impossible.

 

There is a reason that in this country we use GM engines for swaps the majority of times instead of others. Price, availability and aftermarket support. I have seen a early Wagoneer with a Jag V12 stuffed in it. But it belonged to Bill Harrah who had millions to play with and a fully staffed restoration shop with probably the largest antique car collection in the world, as well as his own aviation museum. Great swap, a little tight, but certainly not practical. Doing anything like this with BMW is not a smart idea in this country. Things might be different in Italy

Also I haven't driven a BMW. But I do have a turbo charged Subaru. It is fast, but even though it has more HP and less weight than the XJ, the 4.3 will make 0 - 60 faster every time. That is why displacement is better.

 

Iron block aluminum heads, the LM7 weighs 10lbs more than a 4.0L

 

GM might be the easy cheap way, but doing things different is part of owning a Jeep.

Like my build, I'm bucking trend and installing a RAM V10. Not cause it's cheap or a simple install. But because it's different.....

Anything can and will fit with time, thought and good old red blooded ingenuity..

 

No problem there. I like to think outside the box also. To me, the bottom line is how practical it is to do. Dodge is far higher up the list than BMW. There might be three in our town of 100,000 and a minimum 80 mile drive for any part.

 

Well, my Blazer is for sale, and it's got the 4.3 and the 4L60E tranny. If you buy it, you could opt to remove the engine and tranny, or drive it as-is. Seeing as it's also got the Rough Country lift, as well as a bunch of other mods and new parts, I personally think you'd be better off just driving the Blazer. LOL

If you are interested and want more info, PM me.

 

USA, Italy.... an engine is just an engine...
Personally i would keep the jeep jeep and swap in a zj amc 5.2 with tranny if i wanted a V8. How much is the whole zj on craigslist? 1k? I would keep the engine and tranny and sell the rest to some zj owner.
A V12 is definitely not practical. Your example does not apply. An in line 6 is something compact and easy to install. Now it must not necessarily be a BMW engine, it can be any modern engine with an OHC configuration, lightweight, belt driven and with a redline over 7000 rpm. Add a BF turbo and you have so much torque and HP that you will need Dana 60s to handle it.
Your subaru is a four cylinder that has nearly half the torque of your jeep, that's why it is slower, reread the torque specs i posted about the BMW... people seem to look only at horse power that is an overestimated quantity.
I'll tell you why you want a V8: so you can say "look i have a V8 in my chkee, listen to the throaty sound etc.." like an american muscle car.
I understand that, i like it too, my father (he turned 70) swaps v8s in everything comes in his hands, he fitted a rover v8 (buick 215) in a SIDEKICK this christmas, and told me he wants to fit the only 440 we have in the scout!
I UNDERSTAND the want of displacement, but the truth is that a V8 is heavy and turns slowly, lots of low end torque and power, but what happens when you hit 5500 RPM?
Thik of a bike: have you guys ever driven a 750-1000?
I own a yamaha FZR 1000 that is 143hp stock. The first time i rode it i revved it up to 3500-4000 RPM and said WOW this thing flies! Then a buddy with the GSX750 said to me "why are you goin slow? rev it up to 9500/10000 rpm" and i did. ANOTHER DIMENSION, it never stops accelerating and you can reach 60mph in second gear (it has 5) in less than 3 seconds. Impressive.