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YZ250F Cylinder Heads?

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I have been looking for a cylinder head for my 2003 yamaha yz 250f, and I was wondering if any other years will fit it. I know Yamaha has hardly changed the 250f engine at all, but the oem part numbers are all different.

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They will all fit, but 05+ or 06+ heads require the newer piston to be installed. Which isn't a bad thing. The newer head flows better (apparently) compared to the 01-05 heads.

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They will all fit, but 05+ or 06+ heads require the newer piston to be installed. Which isn't a bad thing. The newer head flows better (apparently) compared to the 01-05 heads.

Ok, thanks. Are the cams different?

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Jesse at Williamsmotowerx here on the forum can answer all of these questions for you in detail. Just PM him at Williamsmotowerx. :)

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Jesse at Williamsmotowerx here on the forum can answer all of these questions for you in detail. Just PM him at Williamsmotowerx. :)

Alright, will do. Thanks a lot.

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