440 kit question

[wfoyfz]

I am working on a 400ex and the guy wants a 440 kit on it, where is the best place and price to buy one?

[bigballz400]

i got mine off ebay........it was like 250 i think........came w/ piston rigs clips gaskets new sleeve for cylinder...i love it

[JW450R1]

i got my buddies off ebay for 299 shipped.also stage 2 hotcam.
also you should go with a new cam chain.i went with a crf450 dirt bike chain.it is the same as a heavy deaty chain and it's 1/2 the $$$$$.thanks to 400exrider707 helped me out a lot.my buddy had a mild port done.man what a difference in power.