iterchangeable heads

Discussion in 'Dodge Truck Forum' started by bd84, Jun 11, 2016.

  1. bd84

    bd84 New Member

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    I have 1 bad head on a 1984 d150 318. I have access to a head from a 1986 318. Will it work and can I just change the one or do I need both sides changed
     
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  2. leolkfrm

    leolkfrm Full Member

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    dodge was notorious for not drilling and tapping all holes on parts for accessories, make sure vales are same size as they also varied with application....trucks generally will have diff assembly parts than cars, gm always had a passenger and truck head
     
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  3. bd84

    bd84 New Member

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    The head is actually from a truck. Should that make a difference ?
     
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  4. MrMarty51

    MrMarty51 Full Member

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    Check the casting numbers and part numbers to be sure that they are the same combustion chambers too. If they are the same numbers then it should interchange. Not real familiar with Dodges though.
     
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  5. BurbanMan

    BurbanMan Full Member

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    Yes, it will work fine. They are both LA series engine heads.
     
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  6. bd84

    bd84 New Member

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    Will there be any machine work involved or can I simply put the new in ?
     
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  7. MrMarty51

    MrMarty51 Full Member

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    If the heads are reman then just install new gaskets and put them on.
    If the heads are from an auto salvage and might be questionable then I`d get the valves and seats ground, if it were Mine.
     
  8. gmctrucks

    gmctrucks Full Member

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    I would get them checked and if any doubt I would just have them rebuilt I see it like pay now or pay later then having to do all the work again maybe while there with the heads off replace the freeze plugs just for piece of mind.
    Good luck! GMC
     

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