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Unread 06-12-2013, 06:10 PM   #1
mcgyver210
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1988 YJ Wrangler 
 
Join Date: Aug 2011
Location: Nashville, TN
Posts: 59
Need some help making a decision.

I have had my sons 88 Jeep 4.2L Project on old for a while but we are now starting to work on it. We almost just bought a newer one but decided we could just put some money into this one & come out better since we would know what we have

I live in TN & we do have emissions testing even though not as strict as many other states so I want his to pass of course.

We had decided to either go with the Howell TBI or the Mopar/Hesco MPFI kit. I was going to do the compression test to see how strong the engine is before deciding which way to go.

Now I have been offered a Professionally Rebuilt 4.2L engine with 4.0L Head professionally reworked with water jackets sealed. This also will come with complete wiring Harness & the MPFI etc.

Seems I will need the Dampener & maybe a fuel pump. I am researching to make sure of anything else that may be needed which is one of my questions here?

I also will not be giving a core so I will keep existing engine in this deal.

My reason for thinking of changing is Im not really that sure of the overall condition of the existing engine & with the cost of the Mopar MPFI as a factor I can just add a little more & replace with this rebuilt engine with the 4.0L head as well as MPFI which on the surface seems like a better approach. I have read here many times people giving advice for this setup or Strokers?

So what would any of you do in this case any advice is appreciated?

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1988 Black YJ 4.2L AT
1994 Red YJ 4.0L MT
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Unread 06-12-2013, 06:36 PM   #2
superj
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1987 YJ Wrangler 
 
Join Date: Mar 2008
Location: corpus christi, texas
Posts: 6,343
I guess the price and how comfortable you are with the deal and builder is the deciding factor. Fuel injection is a huge plus so weigh everything and decide if its worth it.
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Unread 06-12-2013, 06:42 PM   #3
mcgyver210
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1988 YJ Wrangler 
 
Join Date: Aug 2011
Location: Nashville, TN
Posts: 59
Money is not the major factor I just want this Jeep to be reliable & run well.

I have been doing allot of reading & it seems many here like the 4.0L Head on the 4.2L. Being as I know nothing of the history of the current engine I kinda like the idea of a fresh engine as well as the MPFI.

The guy says he had an RV Cam & most parts upgraded because he was building it for his personal project 88 Jeep.
__________________
Jeep Newbie
Everyone has an opinion & this is just mine sorry if it offends anyone.

| ______
/l ,[____],
l----L-[]lllllll[]-
./.\.\./.\.,,,./.\
()_)-()_)--o)_)

1988 Black YJ 4.2L AT
1994 Red YJ 4.0L MT
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Unread 06-12-2013, 06:46 PM   #4
superj
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1987 YJ Wrangler 
 
Join Date: Mar 2008
Location: corpus christi, texas
Posts: 6,343
Not saying money is the deciding factor, saying weigh the options if the price and knowledge of the builder are worth it. A person saying they did a lot of work is hard to prove if you didn't see the build. That is all I meant.
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Unread 06-12-2013, 07:26 PM   #5
mcgyver210
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1988 YJ Wrangler 
 
Join Date: Aug 2011
Location: Nashville, TN
Posts: 59
Quote:
Originally Posted by superj View Post
Not saying money is the deciding factor, saying weigh the options if the price and knowledge of the builder are worth it. A person saying they did a lot of work is hard to prove if you didn't see the build. That is all I meant.
Sorry I didn't mean you was saying anything about price. Only thing as proof is receipts & contact info for shop.
__________________
Jeep Newbie
Everyone has an opinion & this is just mine sorry if it offends anyone.

| ______
/l ,[____],
l----L-[]lllllll[]-
./.\.\./.\.,,,./.\
()_)-()_)--o)_)

1988 Black YJ 4.2L AT
1994 Red YJ 4.0L MT
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Unread 06-12-2013, 08:27 PM   #6
superj
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1987 YJ Wrangler 
 
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Location: corpus christi, texas
Posts: 6,343
Yes sir, no problemo.
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