I'm looking to build my EX motor up to a 440 sometime soon. Right now, my motor has a Curtis Sparks X-6 full system, Wiseco 11:1 piston, and XR cam. I am looking for the best 440 kit. I want as much reliability, and power as possible from the 440.

Is there an awesome pre-assembled kit out there? Or should I piece one together? Thanks a lot.

 

If your not gonna send it out to be done then may as well piece it together your self and save a few bucks or headaches. May want to check out Rosspistons.com also as they have more under or over bores avail and have addressed all the previous comp probs etc with the old wiseco/ims kits. Good Luck