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Thread: 185S frankenmotor

  1. 03-17-2013, 12:38 PM #1
    fordrangerracer
    fordrangerracer is offline New to the board Arm chair racerNew to the board
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    185S frankenmotor

    To start off I have a 1981 XL185S engine. Swapped 200x cylinder and piston. With an XR200 cam and carb. Went to kick it got stuck and bent a valve. So I had the piston recut and I had the rockers adjusted wrong so I bent another. So obviously no compression!! But my question is, will a XR200 head work good on this project? I know a 200X has a bigger combustion chamber than a 185/200. I'm going to assume that an XR200 is a little bigger than a 200x.
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  2. 03-18-2013, 01:26 AM #2
    falloutboy's Avatar
    falloutboy
    falloutboy is offline Got The Holeshot Arm chair racerJust too addicted
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    you might want to double check your valve timing. If the cam is 180° out that could be causing your issue. I'm not much into the 200's but I thought the XR and ATC top end parts were mostly interchangable.
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