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Unread 04-22-2007, 08:45 AM   #1
axehead
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pros & cons of a v8

do you lose any creature comforts when putting a v8 in a tj. like ac, ps, pb, or cc?

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Unread 04-22-2007, 09:12 AM   #2
Stu Olson
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Quote:
Originally Posted by axehead
do you lose any creature comforts when putting a v8 in a tj. like ac, ps, pb, or cc?
I guess that would depend a lot on if those things were available with the V8 conversion you installed. If the engine doesn't have an A/C compressor, then yes, you won't have A/C. If the engine doesn't have a PS pump, then yes, you won't have power steering. If the engine........
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Unread 04-22-2007, 09:18 AM   #3
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Stu- maybe you could elaborate a bit. If the engine does have AC, PS, etc., is there clearance for those pumps and pulleys under the confines of the TJ's engine bay?
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Unread 04-22-2007, 09:25 AM   #4
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The Tj engine bay is actually quite large. You can put in heat and A/c if you have the time skills and money.
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Unread 04-22-2007, 09:33 AM   #5
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If its an older V8.. it will have carburation..
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Unread 04-22-2007, 09:39 AM   #6
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Quote:
Originally Posted by WILLY348
If its an older V8.. it will have carburation..
If you plan to pass emissions test you will need to put in an engine of your Jeeps year or newer. AEV does a V8 swap that looks factory. This swap isn't for somebody who doesn't know what they are doing. It will take alot of research, problem solving, etc to get everything working.
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Unread 04-23-2007, 03:24 AM   #7
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4.7 Stroker
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Unread 04-23-2007, 03:41 PM   #8
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383 stroker! :-)
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Unread 04-23-2007, 03:44 PM   #9
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Small Block Chevy! .
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Unread 04-23-2007, 05:08 PM   #10
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im currently planning things out for a LS1 swap
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Unread 04-23-2007, 05:52 PM   #11
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mopar 360 with 4" crank....
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very street able....
550hp all the way to 6000 grand....
enough low end torque to embarrass a big block...
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Unread 04-23-2007, 06:17 PM   #12
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Quote:
Originally Posted by axehead
do you lose any creature comforts when putting a v8 in a tj. like ac, ps, pb, or cc?
it certainly won't take long to find all your drivetrain's weaknesses with a V8.
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Unread 04-25-2007, 05:34 PM   #13
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5.0 Ford

Although it'not near as powerful as Chevy 5.7, 5.3 . It's a very good option. The dist. is in the front so there isn't any firewall issues, it's a lot lighter than a 5.7. I have been a mechanic for over 27 yrs. When it comes to making power you can not beat Chevorlet. Chevorlet beats anything dollar for dollar in horsepower. But a Ford 5.0 is powerful enough and will more than likely beat out Chevy on fuel mileage. From my dealings with both of them, I would put a stock 5.0 in my Jeep with no second thoughts. If I were to use a Vortec 5.7 or the 5.3, I would have to beef up the front and rearends. And I wouldn't use the stock transmission. Chevy right now has a 2007-8 5.3 that puts out 300HP.. I want to stress that this is a personnal opinion and is way to be considered fact. I have had race cars, built race and hi-performance engines for customers, I have tried and broken alot of stuff and out of this I give you some food for thought.
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Unread 04-25-2007, 05:49 PM   #14
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Quote:
Originally Posted by jeepinjim
Although it'not near as powerful as Chevy 5.7, 5.3 . It's a very good option. The dist. is in the front so there isn't any firewall issues, it's a lot lighter than a 5.7. I have been a mechanic for over 27 yrs. When it comes to making power you can not beat Chevorlet. Chevorlet beats anything dollar for dollar in horsepower. But a Ford 5.0 is powerful enough and will more than likely beat out Chevy on fuel mileage. From my dealings with both of them, I would put a stock 5.0 in my Jeep with no second thoughts. If I were to use a Vortec 5.7 or the 5.3, I would have to beef up the front and rearends. And I wouldn't use the stock transmission. Chevy right now has a 2007-8 5.3 that puts out 300HP.. I want to stress that this is a personnal opinion and is way to be considered fact. I have had race cars, built race and hi-performance engines for customers, I have tried and broken alot of stuff and out of this I give you some food for thought.
Thanks
jimmy
For the dollar, Chevy is the way to go. Parts are plentiful, the engines are reliable, and aftermarket support is through the roof. But I would argue that Mopar engines tend to be considerably underrated and quite often are the more powerful of comparable Chevys. I don't know about the new 5.7 Hemi, but remember the original 426? Dayum. Stick one of those in a TJ, and you'll roll the thing by giving it too much gas at a stop light.

I've had a couple of 5.2 (318) V8s and found them to be extraordinarily reliable engines, although not race worthy. I've also had (briefly) a 340 V8 which was a frickin' screamer. The oil galleries had to be bored out, that was it's one weakness for high RPM. I also had a beast of a Fury with a 440... now THAT is torque.

When it comes down to it, a TJ with good electricals will probably find it easier to add a 5.2. They are plentiful, were made through 2001 or so (after a 30 year run!), and the electronics are MUCH easier to hook up.

That being said, I am *not* a mechanic, but I have been a "car guy" my entire life.
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Unread 04-25-2007, 07:39 PM   #15
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5.2

The 5.2 is a great motor but the fuel injection is light years behind and problem prone. Now Iam talking 96 and up OBDII. I think Chevorlet has the best fuel injection and Ford is second. Any swap into a TJ would have to be OBDII at least in Texas. The best way I think to do a V8 swap would be to get a 1997 and up donor vehicle. You would have the computer, wiring harness and all the little stuff you need. You could get the trans adapter stuff from Advanced Adapters. There are plenty of wrecked late model vehicles to fill the bill. If you try to piece one together it's going to cost alot more. And than sale your Jeep's stock stuff on Ebay. There making full size trucks with small V8's getting 20-21mpg. They weigh a bit more than a Jeep. I think with the right transmission these numbers could be a Jeep's. My friend has a 1976 Dodge Powerwagon 318-2bl. 4X4- Dana 205 with 33's 3:55 ratio it gets 19mpg. He bought it new, I rebuilt the motor once. Awsome motor if I say so myself. And there's not much difference between a car guy and mechanic, you just basically find out what goes wrong several different type of cars and trucks. And have access to Hi-tech repair information and hi-tech tools. And than you hope you can pay for all of them.
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