Thread: Overheated, 50psi compression, Get used heads?

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  1. #1 Overheated, 50psi compression, Get used heads? 
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    I recently overheated my car. I did a compression test and cyl 3 & 4 where 55 and 120 respectively,everything else was good. I took off my heads to inspect. Heads looked good except there was lots of water in cylinder 3 and some water on cylinder 4. There were traces of rust around the valves on these two cylinders. I thought the water was due to a bad headgasket so I replaced the HG and redid the compression. Keep in mind my car has been maintained very well and the LIM/UIM gaskets were replaced 10k miles ago with the aluminum ones. Unfortunately I got the same compression results as before 55 on cyl3 and 120 on cyl4. So my heads must be warped/cracked/damaged. I was thinking on getting used heads from somebody and replacing mine in order to get my car moving. Would this be the cheapest way to go. Im thinking getting my heads refurbished in a local machine shop would be expensive. What would you guys do? Thanks.
    Last edited by mojonba; 02-26-2011 at 06:40 PM.
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  2. #2 Re: Overheated, 50psi compression, Get used heads? 
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    Bring the heads to your local engine shop, tell them you need the heads decked, they'll know what you need, and its not all that expensive
    '03 Grand Prix SE Nice n Slow, but I'll race you in the snow! (Current)
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  3. #3 Re: Overheated, 50psi compression, Get used heads? 
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    decked and a valve job, spring pressures checked and new valve seals.
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  4. #4 Re: Overheated, 50psi compression, Get used heads? 
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    How much would you expect to pay for this locally?
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  5. #5 Re: Overheated, 50psi compression, Get used heads? 
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    300 tops for a pair IIRC
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  6. #6 Re: Overheated, 50psi compression, Get used heads? 
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    just a quick q...what does IIRC mean?
    '03 Grand Prix SE Nice n Slow, but I'll race you in the snow! (Current)
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  7. #7 Re: Overheated, 50psi compression, Get used heads? 
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    Im going to get some head restore quotes on monday. In the meantime
    im looking around for used heads. One question, can I use L26 heads on my L36?
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  8. #8 Re: Overheated, 50psi compression, Get used heads? 
    GTP Level Member KeithGTP03's Avatar
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    Quote Originally Posted by Terry102 View Post
    just a quick q...what does IIRC mean?
    If I Recall Correctly

    03 GTP...Its got pulleys and stuff.
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  9. #9 Re: Overheated, 50psi compression, Get used heads? 
    I live here. Slick2500's Avatar
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    I thought it was if i remember correctly.
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  10. #10 Re: Overheated, 50psi compression, Get used heads? 
    GTP Level Member KeithGTP03's Avatar
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    Recall, Remember = synonyms

    03 GTP...Its got pulleys and stuff.
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  11. #11 Re: Overheated, 50psi compression, Get used heads? 
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    Quote Originally Posted by mojonba View Post
    Im going to get some head restore quotes on monday. In the meantime
    im looking around for used heads. One question, can I use L26 heads on my L36?
    yes but, I don't suggest putting used heads on a car without having a machine shop check them out first.
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  12. #12 Re: Overheated, 50psi compression, Get used heads? 
    The mod from over yonder TheOtherNick's Avatar
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    I have some l36 heads if you want them. $20 plus shipping.
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