400ex motor kits?

[partyboy300ex]

I have a 426 kit now but I want to do a winter rebuild and go up to a 440 probley I race flat track and TT and some MX ive been looking at 440 kits and I was wondering if you do have them do you reccomend them and what company is it. And any info. about the company.

Thanks.

[prepracing]

why do you want to go to something slower :blah: that would be a waste, go to a 465 or 500 so u will actually feel some difference

[4everhonda]

From a 426 to a 440 you will feel no difference. If that's all you do then you will be dissapointed. Do some head work instead, maybe some new 3 angle valves, high velocity porting something besides the new heavier piston. Just the piston wont do crap so defenitly think before buying. If your still gonna stick with it wiesco is the easiest to get a kit but I perfer JE or Ross, Ross is the lightest and with a 440 you need to keep that big piston light! Hope this helps.

[partyboy300ex]

im not talking about doing just a piston im talking about redoing the whole motor I was looking a a CT 440 kitthat has the 3 angle valves and it sounds pretty good