A question about heads

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    Author Topic: A question about heads  (Read 3142 times)

    Offline pitbull

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    A question about heads
    « on: August 02, 2005 - 04:57:39 AM »
    I was going over the numbers of my recently purchased 340 short block and heads. I looked on MyMopar, and checked the head casting numbers. I came up with the following info:
    Casting number    Engine CID   Year    Intake    Exhaust
    3418915              340TA       1970    2.02       1.60
    3418915              340        1971-72  1.88        1.60

    My question is this; Where is the date code on the heads? I've looked, but did not see them. I know the short block is a 1970, but I'm not sure about the heads. Here are some pics. Thanks Again.

    Head casting #
    Short Block Date Code
    Head view
    An unknown number on the head
    And another


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    dodgetkboy78

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    Re: A question about heads
    « Reply #1 on: August 02, 2005 - 11:09:35 AM »
    I dont think there is a date code on the older heads, the good news? Is you can narrow it down to 3 years, 70,71,and 72. :thumbs: :thumbs: :thumbs: :thumbs:

    is there a clock anywhere on it?
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    Offline pitbull

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    Re: A question about heads
    « Reply #2 on: August 02, 2005 - 11:35:39 AM »
    Yes, the clock is just left of center in this pic.
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    dodgetkboy78

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    Re: A question about heads
    « Reply #3 on: August 02, 2005 - 12:01:42 PM »
    I bet Chryco can decifer those numbers if anyone can, I dont have any casting books.

    I was htinking maybe there were some numbers next to the clock. :dontknow:
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    Offline pitbull

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    Re: A question about heads
    « Reply #4 on: August 02, 2005 - 12:56:41 PM »
    I read that there was supposed to be a date code next to the clock, but I couldn't find anything.
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    Offline Chryco Psycho

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    • 70 Challenger R/T SE 70 tube Chassis Cuda now sold
    Re: A question about heads
    « Reply #5 on: August 02, 2005 - 06:22:43 PM »
    they are definatly Not the T/A heads & they look like the 2.02 valves so my guess is the 71-72 340 head
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    Challenger - You`ll wish You Hadn`t

    Offline pitbull

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    Re: A question about heads
    « Reply #6 on: August 02, 2005 - 07:38:44 PM »
    So they do look like the 2.02 valves? The guy I bought them from said he thought that they were 1.88, but that was just from running numbers.
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    dodgetkboy78

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    Re: A question about heads
    « Reply #7 on: August 02, 2005 - 09:35:28 PM »
    915's never came with 2.02's, as far as the books go, or I have seen. :thumbs:
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    Offline pitbull

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    Re: A question about heads
    « Reply #8 on: August 02, 2005 - 10:27:25 PM »
    OK, thanks. How do I measure them. The width of the valve at the widest point, the inside diameter of the opening, or something else?
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    dodgetkboy78

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    Re: A question about heads
    « Reply #9 on: August 02, 2005 - 10:31:56 PM »
    width. :thumbs:
    2.02 have bout .030 between the int/exaust valves. :thumbs:
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    Offline Chryco Psycho

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    Re: A question about heads
    « Reply #10 on: August 02, 2005 - 10:51:32 PM »
    the 71 -72 J heads had 2.02 stock , the T/A heads had offset pushrod holes , the intake almost touches the exhaust  in the pix so I bet they are 2.02 heads
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    Challenger - You`ll wish You Hadn`t

    Offline pitbull

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    Re: A question about heads
    « Reply #11 on: August 03, 2005 - 06:46:22 AM »
    Thanks.  :thumbs:
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    Offline DJVCuda

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    Re: A question about heads
    « Reply #12 on: August 03, 2005 - 06:53:25 AM »
    they look like 202's to mee also...

    the pic...



    I believe that is your date - if my memory serves me correctly it's the month, 2 digits, date, 2 digits, and year, 1 digit... so the heads might be from 69... i'll have to check whenI go home to be sure tho...
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    Offline pitbull

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    Re: A question about heads
    « Reply #13 on: August 03, 2005 - 07:11:21 PM »
    Cool, thanks. That will be good info to know.
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    Offline kmac441

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    Re: A question about heads
    « Reply #14 on: April 12, 2006 - 07:26:05 AM »
    I Have  1971 340 Block I Have a Pair of Heads 3671587

    One Head is Number'd  3671587-8  Also  0103

    One Head is #  3671587  3222 

    They have 2.02 & 1.60 

    Are these a matched pair.  Comparing them to x heads will they perform on my street 340  1970 cuda.

    What do the number's mean  thanks  kevin
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