87 4.0 Rebuild
Thread Starter
Member
Joined: Jan 2012
Posts: 113
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From: Centeral Valley CA
Year: 1987
Model: Cherokee
Engine: 4.0
My shop is a Summit dealer, I can get the Cost price....
The complete Cam Kit for just lil over 200$
Rebuild kit is like 350-400 my cost depending on what I do...
The complete Cam Kit for just lil over 200$
Rebuild kit is like 350-400 my cost depending on what I do...
Last edited by Trickcomanche; Mar 5, 2012 at 06:00 PM.
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Joined: Jul 2011
Posts: 133
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From: Elizabethtown, KY
Year: 92 XJ (RIP)
Model: Cherokee
Engine: I-6
Trick, one of the best moves you can make is have the piston measured how far down in the cylinder the piston rests at top dead center. Use this measurement to figure out how much of the deck surface can be removed to maximize your compression ratio. Compression=power. As for the valves, have the head reconditioned. That should include a valve job, new valve seals, and have the head milled to insure it is flat. IMHO.
Originally Posted by cruiser54
Now where did he say that in the quote above?
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Joined: Aug 2011
Posts: 43,971
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From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Seasoned Member
Joined: Jan 2012
Posts: 422
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From: Valley Park, MO
Year: 1989
Model: Cherokee
Engine: 4.0L Renix Freshly Rebuilt!!
How is your rebuild coming along? I too am rebuilding my 89 4.0 its in the shop right now getting bored out. Did you end up buying the comp cam set up? If so what were the results?
Thread Starter
Member
Joined: Jan 2012
Posts: 113
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From: Centeral Valley CA
Year: 1987
Model: Cherokee
Engine: 4.0
I ended up just buying an engine that was used but rebuilt 40k ago. I couldnt pass it up. 300$. All the machine work and parts I wanted was gona be over 1200$ so im gona run the one I bought and slowly build the one thats in it.
Seasoned Member
Joined: Jan 2012
Posts: 422
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From: Valley Park, MO
Year: 1989
Model: Cherokee
Engine: 4.0L Renix Freshly Rebuilt!!
Thread Starter
Member
Joined: Jan 2012
Posts: 113
Likes: 0
From: Centeral Valley CA
Year: 1987
Model: Cherokee
Engine: 4.0
Picked up a header for it, gona do some slight porting just to clean things up and make flow a lil better. Im throwing in a set of main and rod bearings in it tonight and putting it together. Just for my peace of mind. Im running a TB spacer and with the header, spacer, fresher engine and 4.10s on 31s should do preaty good.


