v8 swaps. which engine - Pirate4x4.Com : 4x4 and Off-Road Forum
 
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Old 04-23-2008, 02:23 PM   #1 (permalink)
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Cool v8 swaps. which engine

With gas being super retarded these days at $4. I figure my 4.2L L6 could use replacing with its 12mpg. I figure something with more torque would get better milage.

Which v8 to choose? I was thinking:

5.0L ford with aftermarket long runner intake and upper intake spacer to make the runners a bit longer. We did it on my friend 88GT and he said it made a big difference in torque and milage.

4.8L GM Its one of the most modern v8s out there, plentiful in junkyards. NO body wants them. Should be cheap to get with low miles. The size should be good on gas.

4.6L ford 2v. I have one in my '04 mustang and I like it alot. Might be too much hassle though.

ideas? comments?
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Old 04-23-2008, 03:57 PM   #2 (permalink)
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Go 5.0, stupid simple to make work, tons of aftermarket and cheap to fix.
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Old 04-23-2008, 04:47 PM   #3 (permalink)
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Go 'backwards' and start thinking I4. Or Diesel.

I'm dreading the thought of filling my 23 gallon tank with $4.00+ per gallon premium:
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Old 04-23-2008, 06:03 PM   #4 (permalink)
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Go 'backwards' and start thinking I4. Or Diesel.

I'm dreading the thought of filling my 23 gallon tank with $4.00+ per gallon premium:
can't do gas to diesel conversions in CA.

thats a nice 5.0L ya i speant $69 last fillup on my 20 gal tank but i use 87 octane.
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Old 04-23-2008, 06:50 PM   #5 (permalink)
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can't do gas to diesel conversions in CA.
Yes you can, people here on the board have done it.
Travis..
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Old 04-23-2008, 07:16 PM   #6 (permalink)
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go to your local DMV and double check. I believe you can do a gas to diesel conversion. I know diesel is more expensive, but people have done swaps and gotten around 28 MPG!!
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Old 04-23-2008, 07:18 PM   #7 (permalink)
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Yes you can, people here on the board have done it.
Travis..
legally or stickered off-road? from what i researched you have to keep all the smog equpiment off both engines which makes no sense.
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Old 04-24-2008, 02:19 PM   #8 (permalink)
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I'd look into diesel or go 5.0l for simplicity and cost. Pretty sure you can convert to diesel, should double check. people are doing bio-diesel conversions like crazy on the west coast, pretty much same thing.
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Old 04-27-2008, 08:54 AM   #9 (permalink)
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I'd rn the 5.0 myself, there are lots of options of self-contained wiring harnesses out there.

I chose a 98 5.9, but only because it fits and adapts very well to my 98 TJ.
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