Engine kits for 450R?

[balls2da-wall]

Im looking for what would be equivelent to a 426 kit on a 400ex for a 450R. By that I mean Im wanting a small jump in bore size but nothing too extreme. Does anyone recommend a kit for XC? I can run either pump, race fuel, or a mix...it does not matter to me. Looking for more mid to top end power. Thanks.

[watts16]

IceCube 480 kit is what I think my buddy has. Thing flys:eek2:

[balls2da-wall]

Alright. I will look into it.

[Colby@C&DRacing]

A high compression piston and a cam with help alot there isn't really any reason to go bigger for xc racing in IA

[balls2da-wall]

Yeah. That may be the route I go. I have plenty of power in the woods, but in open sections I get pulled on everytime. I may be on someones butt in the woods, but as soon as we get into an open section they pull away. Makes passing tough when people arnt willing to move over in the woods. I think I learned my lession last year building the crf-hybrid that power isnt everything. Im just wanting some more topend to make passing a little easier. I may dive deeper into corners then them, but exiting I cant get the drive they have out.