Need 400ex Engine Info

[darvo]

I would like to know some diameters of the engine, like I/E valve diameters,exhaust port diameter, stock header tube diameter,stock carb diameter,rod length and cam duration.

Regards,
Darvin Diaz

[bigbad400]

are you trying to machine your own block or something what on earth could you want them measurements for. i dont know any of those specs but i dont think many do off the top of their heads.

[416exman21]

buy a clymer manual www.clymer.com - it has all u could want to no about stock specs ....