My buddy has one. Needs to be honed and doesn't come with dome but its good.

 

Text me more details and price 4054960130 thanks!

 

I am getting ready to part out my quad that has a Complete ESR 310 powervalve kit kit on it that runs very well. I havent decided how I will sell the motor....break it apart or sell it as a complete running motor....what are you looking for?

 

A used 310 with piston and head would be my ideal pick. I'm not really looking for a complete motor unless it was a deal I couldn't pass

 

i have a 310 esr non pv top end with about 15 hours on it if still needed, feel free to call,443-250-4755, jerry