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Thread: BiG Red engine swaps!?

  1. #1
    Join Date
    Oct 2006
    Location
    Titusville, FL.
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    BiG Red engine swaps!?

    I have a 85' Big Red 250es & the engine is shot! I was wondering if an engine out of a TRX 300 2x4 utility quad would bolt up in the Big RED frame? Has any one ever done this? Any pics?

  2. #2
    Join Date
    Oct 2006
    Location
    Titusville, FL.
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    631
    No body has info about this?

  3. #3
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  4. #4
    Join Date
    Jan 2006
    Location
    CT
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    116
    Ive always wondered the same, i think it will swap right in, but im not positive! If i had a 300 motor i would try it one after noon, they look to be the same to me.

  5. #5
    Join Date
    Dec 2007
    Location
    Quebec,Canada
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    Yes it fit....

    1986 ATC500X
    1985 ATC250SX
    1985 ATC200X
    1985 ATC250R
    1986 ATC250R
    1984 ATC250R
    1981 ATC70
    1984 ATC70
    1985 ATC70
    Custom built ATC70 / 250R laydwon swap
    1986 ATC250SX FATCAT

  6. #6
    Join Date
    Mar 2007
    Location
    Texas
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    it fits, but you have to use the 250 trans axle assembly where the shaft comes out of due tot he angle needing to be correct. search and you will see a thread about it being done.
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