Got a Cracked Head.... what should i do? - Page 2 - Ranger-Forums - The Ultimate Ford Ranger Resource


4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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  #26  
Old 10-18-2009
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Originally Posted by Toms994x4 View Post
Both of mine were cracked between the intake/exhaust valves (common on 4.0s). Did your mechanic actually pull the heads and magnaflux them? The reason I ask is because you said it runs...did he just slap it back together after he found it or what? I still don't think you'll get 8k either. I paid $3200 for my 98 4x4 4.0 with a blown head gasket. Want to sell some stuff of yours?
um.. look at what yours was then look at what mine is.. Probably a HUGe difference.. 2 years, and probably a ton of miles.. My ranger only has 85K on it. And he used this camera thing that he put into the spark plug hole, he could see the crack.. he took a picture of it, so he never took the heads off..
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  #27  
Old 10-18-2009
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Originally Posted by God,Country,FORD View Post
um.. look at what yours was then look at what mine is.. Probably a HUGe difference.. 2 years, and probably a ton of miles.. My ranger only has 85K on it. And he used this camera thing that he put into the spark plug hole, he could see the crack.. he took a picture of it, so he never took the heads off..
Nope, 114k miles...
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  #28  
Old 10-18-2009
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G.C.F.,

Not trying to rain on your parade, but run the blue book on your truck and I think you will be shocked at what you may get for it. If you spend a grand on your truck, (doin all the work yourself,) the top half of the motor and all the gaskets will be brand new. This was a major factor for me when I replaced my heads.

just something to think about.
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  #29  
Old 10-18-2009
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just get another set of heads and port them and theres you some more power. junk yard heads. just make sure the truck they come off of runs.
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  #30  
Old 10-18-2009
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Originally Posted by OVERtheEDGE View Post
just get another set of heads and port them and theres you some more power. junk yard heads. just make sure the truck they come off of runs.
I definately would suggest not doing that. 4.0 heads tend to crack in between the intake/exhuast valves and there's no point in getting JY heads for that very reason. Remember, even with cracked heads it will still run.

Like I said before, I got two BRAND NEW heads for $450 which including valve job, valve seals, and swapping over my valves/valve springs.
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  #31  
Old 10-19-2009
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Pull the heads, have them pressure checked...It's very common to have small cracks between valves.
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  #32  
Old 10-19-2009
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right now it looks like i am getting a new set from Alabama cylinder heads.. anyone deal with these guys? i called supersixmotorsports and he suggested these guys.. Actually he HIGHLY suggested these guys.. said the heads are 'substantially' thicker than the stock heads and will not crack.
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