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Old 03-28-2013, 06:28 PM   #1
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5.0l HELP NEEDED QUICKLY!

I feel like this question should be more in a mustang forum. I actually posted it there but they like to ignore people... Wranglerforum has been clutch for me lately. So Im in the process of looking for a 5.0 to put in my jeep. I found a 1989 5.0 short block that was completely rebuilt I could get for 350-400. I dont feel like buying all the bolt on, pan and everything separate to build up the short block. My question is if I pull a 96 explorer 5.0 long block from a junk yard, would I be able to just swap out the explorers short block and throw in the freshly rebuilt one? Or is it that just a flawed idea. Any input would be greatly appreciated! I'm hoping that I can get enough information tonight so I can make a decision. Thanks in advance guys

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Old 03-28-2013, 10:33 PM   #2
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Personally I think it would be cheaper to get the explorer long block and freshen it up,
that way you know exactly what you have.

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Old 03-28-2013, 11:50 PM   #3
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I would just transplant the whole explorer 5.0L if the mileage isn't crazy high. The late model 5.0's were pretty good engines. Just change out all the fluids, and put new spark plugs and wires in it. All that regular maintenance stuff.

less hassle than swapping everything over to the 89 block.
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Old 03-29-2013, 02:00 AM   #4
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The 96 comes with the GT40P heads and a really sweet intake. I am not sure if the pistons in the 89 short block will provide the correct compression ratio for those heads. I would check to see if the dish in the piston has the correct volume for your heads. And if you have a rebuilt bottom end I would sure want to put a fresh valve job and springs on a fresh install. 5.0 bottom ends are quite capable of 200,000 miles. The valve guides and seals go before the bottom does. The roller cam and lifters will outlive both. That would make a sweet torque monster for a TJ.
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Old 03-29-2013, 07:44 PM   #5
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Hey guys thanks for the responses, Im actually going to look at a mustang long block tomorrow and will probably pick that up as opposed to building up the short block. Ill just throw the gt40p heads on that and clean her up alot. Im actually from the YJ side of this forum, I just always see that the TJ forums has close to twice the amount of people using so I thought it may get more traffic over here lol. Thanks again guys!
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Old 03-29-2013, 09:37 PM   #6
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Yeah i have a 93 mustang short block + heads back home, and all the intake and electronics from an 88 town car 5.0. If i ever get back home to finish it it is replacing the 302 (basically still a 5.0) in my fairlane. But maybe i will put it in the TJ instead, who knows.

Whole thing needs a rebuild anyway so i'm probably gonna go all out and just build a 347 stroker

I think it's better to go with the later models anyway. I don't know when they made the switch to mass air computers, but the earlier fuel injection 5.0's like my lincoln block had the speed density computers. Speed density is not very tolerant to performance mods, for instance putting a cam shaft in with too much duration. Mass air computers don't care, they will figure it out. You can upgrade a speed density setup to mass air but it's cheaper just to find a mass air donor car and grab the whole engine and wiring out of it.

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