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Thread: Atc90 Head on an Atc110?

  1. #1
    Join Date
    Nov 2020
    Location
    AB
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    Atc90 Head on an Atc110?

    Anyone know if a '70 Atc90 head will fit on a '79 ATC110? Head for my 110 is toast and have a line on a head from a '70 atc90. Just wondering if they're interchangeable. Advice would be much appreciated!

  2. #2
    Join Date
    Jul 2009
    Location
    South Florida
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    6,722
    The mating surfaces are different on the early US atc90 heads .
    78 atc 90/180cc Dickson Full Suspension
    76 ATC90/180cc Nicholson
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  3. #3
    Join Date
    Nov 2020
    Location
    AB
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    Thanks for the info shortline, much appreciated!

  4. #4
    Join Date
    Apr 2012
    Location
    USA
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    4,114
    Do you still need a head for the 79 atc110? I know I have a 79 and a 81 around that are for parts. Never heard the engine run so not sure what state the valves and such are in.

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