honda 400ex engine swap to a 250? - GTcarz - Automotive forums for cars & trucks.

12-08-2008 | 06:25 PM

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hillbilly bob

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honda 400ex engine swap to a 250?

ok i have an older honda 2-stroke 250 engine not sure the year, and my friend blew up his 400ex motor so what im wondering is how hard would it be to put the 250 engine in the 400ex frame and what modifications need to be made if any

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