300 ford inline 6 - JeepForum.com

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post #1 of 20 Old 04-24-2010, 03:43 PM Thread Starter
joeskyline06
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300 ford inline 6

i have a 02 TJ and it is my dd, ive always been a ford man and am just getting into jeeps. As i was cleaning out my work shop i realized i have a old ford 300 I6 which is only 2 cubic inches away from a v8 and they have unbelievable power for a I6, my question is, has ANYONE done, or seen a TJ with a 300 dropped in it? if so could you give me an idea of the cost of doing that and what all id have to replace?

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post #2 of 20 Old 04-24-2010, 04:03 PM
never monday
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why replace a 242 with a 300?

and you know there was a 262 V8 IIRC
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post #3 of 20 Old 04-24-2010, 04:05 PM
littledevilTJ
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i bet youll never see it.... for a reason.
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post #4 of 20 Old 04-24-2010, 04:10 PM
LJameson
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Not worth the work for less horsepower and only 20 more ft lbs.

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post #5 of 20 Old 04-24-2010, 04:11 PM
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The I6 300's were torque monsters. In fact, If I'm not mistaken, they had a few more ft.lbs than a stock 302 5.0L v8. They weren't bad motors at all..... I just don't know if it would be beneficial to toss into a TJ. What year is the motor? it would probably be a pain in the *** to get it to meet emissions standards swapped into the Jeep. I thought the computer, motor and body all needed to be the same year or else you have to jump through hoops to get them legal.
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post #6 of 20 Old 04-24-2010, 04:15 PM
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That was indeed an exceptionally good motor, durable as hell.
But as far I know, most were carbureted, and most importantly, the most horsepower they ever made was 150 even in the FI motors.
So why would you want to replace a 195hp Fuel Injected motor with it?

The last of them with FI were
150hp 260lbs torque

So that's not much more torque than the 4.0 but less power.
And it was one of the old engines loaded down with add-on smog crap, whereas the 4.0 is more modern.


Emssions/model year for engine swaps depends on the state. (no such regs here in Oregon)
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post #7 of 20 Old 04-24-2010, 04:20 PM
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Quote:
Originally Posted by littledevilTJ View Post
i bet youll never see it.... for a reason.
^^^ Bingo!
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post #8 of 20 Old 04-24-2010, 04:23 PM
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its gonna be sick
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post #9 of 20 Old 04-25-2010, 12:12 PM Thread Starter
joeskyline06
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well, im thinking about buying one of the fuel injected ones instead of the carb. one i have now. as for all the people who say its a bad idea, i have seen f150s with 300 I6s go places and do things that jeeps just could not do. as for a V8 thats a no go, way to heavy and im not a V8 fan, if i do end up buying a motor i will completely redo the top and bottom end and try to squeeze every bit of power i can out of it.
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post #10 of 20 Old 04-25-2010, 01:11 PM
MattTheMudder
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There are a lot of good engine swaps to put in a TJ. But the 4.0L I6 is a very good engine. I've got to ask myself every time I see a swap: is it worth it? Take out the 4.0L to swap in a Ford 300? I wouldn't. They're both powerful/torquey and very reliable. If you had a 2.5L and wanted something more powerful, I could see going with a 300.
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post #11 of 20 Old 04-25-2010, 01:16 PM
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The cost and headache of doing the swap for so little benefit doesn't make sense. If you want to do it just to do it, then knock yourself out. Dropping a stroker in that bolts right up makes much more sense.
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post #12 of 20 Old 04-25-2010, 01:16 PM
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Quote:
Originally Posted by joeskyline06 View Post
i have seen f150s with 300 I6s go places and do things that jeeps just could not do.

Now that's funny.

Unless you mean haul sheets of plywood - I'll give you that!
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post #13 of 20 Old 04-25-2010, 01:24 PM
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Wait, you want to throw in a 300 and build the bottom and top end to gain some power etc??? Maybe I'm lost but why don't you just sink that money into the 4.0 end up with higher numbers, better gas mileage, emission legal and no headache getting everything to work together.

And your quote about seeing Ford F-150's with 300's do more things than a Jeep could ever do.....what exactly would that be? Pulling trailers? I had an F100 short wheel base 4x4 with a 300 carbed in it, and my 98 Wrangler far surpassed it offroad, but doing things around a farm is a different story because of the bed and tow capacity on the F-100 vs. the wrangler.

But then again maybe I'm lost.
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post #14 of 20 Old 04-25-2010, 01:53 PM
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The Cleveland six is one of the very short list of Ford engines I like (the others being the Falcon six, the 289ci Windsor V8, and the "Windsor V4" - the Saab Sonnet used the front half of the 289ci V8 as a V4, and that thing was a rocket!)

The only real problem you'd have with the Cleveland six as a swap is that the engine is tall. Of course, this is what makes it such a torque beast - the tall block accommodates a longer stroke and longer rods, akin to the Chrysler Slant six. However, the Chrysler would be easier to install, due to the 30* tilt of the bore axis.

I wouldn't even try it in a unibody. It would be an interesting project in a frame-and-box, but I can almost bet you're going to need a body lift in anything Jeep...

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post #15 of 20 Old 04-25-2010, 03:21 PM
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the 300 Ford I-6 is a damn good engine. another tractor motor similar to the Jeep 4.0L. but honestly, for the effort, money and work you'll put into getting the 300 in, you might as well do a Jeep 4.6L stroker...you'll have more hp, more torque and all your stock gizmos will still work.
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