yea my dad suggested it for the torque mainly. another plus is it has over twice the horsepower than the 2.5 stock motor. not that it really matters how much hp ive got but i do like to get my jeep up to speed faster than an oldschool VW bus haha
"The Jeep is a manly device. And a womanly device. An American device. Itís a fitting instrument to transport the free people of a free nation with the respect to which we are entitled and the dignity that we deserve."
If you used that motor, you'd almost be obligated to have one of those spinning propellers hanging off your rear bumper.
Dunno about the real answers, though. Weight, low-end torque (a prop spinning in the water has built-in slip), gas mileage, not to mention all the usual problems associated with a motor swap.
Interesting idea, but I gotta think some redneck with an old boat and a broke jeep has tried a swap of this sort, somewhere, sometime. I knew a guy once who made a boat V-8 into a water pump--- 4 pistons ran the motor, 4 pistons pumped the water. No idea how long it lasted...
You have to start somewhere to get to the middle of nowhere.
im just trying to avoid the amount of money spent.
there will be lots of expenses with any swap, other than a straight replacement swap of the same engine. even then things can get tricky. if you do any swap, plan on lots of annoying things that you either forget, or go wrong.
'91 YJ 4.0 3/4'' Brandon Booms 31/10.50 BFG AT Herc'd CJ dash/tailgate CJ5 seats 4KCs cracked windshield
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It's been a few years since reading about this engine, but fairly sure merc had a few problems with this motor. The block was of their design, and I think it used a cylinder head from the ford 460. Sorry, but I don't remember the exact issues they had, but it was only used for a few years. As far as boat motors built for low rpms, I disagree. Most cars run down the highway in overdrive at 70 mph, turning what, 2500 rpms? Give or take. A boat, which is working much harder (more friction) might be doing 25 mph at same rpm. Depending on the prop pitch. My last boat ran wide open about 52 mph at just over 5200 rpm. This was merc's max recommended rpm level. Mercruiser builds their short blocks pretty stout. How many hours did this motor have on it when it "blew up" ? What was the rpm's when he was "overspeeding it" ?
95' Grand Cherokee, bone stock, 4.0, limited. Used as winter vehicle and rainy days. Warm weather vehicle- 2003 Mustang Cobra w/supercharger.