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    Author Topic: J Head Identification  (Read 813 times)

    Offline daveh

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    J Head Identification
    « on: April 12, 2010 - 03:45:30 PM »
    Hi guys,

    How can I tell if I have J heads on my 340?  Or how can I tell what kind of heads I have?  Thanks

    Dave
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    Offline Chryco Psycho

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    Re: J Head Identification
    « Reply #1 on: April 12, 2010 - 07:17:49 PM »
    if you look down by the lower head bolts by the #3 spark plug you will see a J or an O cast there , if you have  the valve cover off it will have a casting #3 on the intake runner that should end in 915
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    Offline moparnut

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    Re: J Head Identification
    « Reply #2 on: April 15, 2010 - 10:45:46 AM »
    not all 2.02 heads are j, i have a set on a 70 340 i bought that have O heads and 2.02 valves manufactured in late 69.
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    Offline daveh

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    Re: J Head Identification
    « Reply #3 on: April 16, 2010 - 11:37:57 AM »
    That's what I think I have.
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