Removed from a 2006 Arctic Cat Crossfire 700. I bought the sled new in 2005. 

The motor was just taken apart and rebuilt. 7500 original miles on crank. 500 miles on BB kit. 

Big Bore was done by RK Tek 2strokeheads 

Also have the STM big bore valves installed, no longer have to fight with exhaust valve cable and servo motor. 

VForce 3 installed along with BB. 500 miles on them.  

Entire sled would be for sale also if interested, a seal went out in The diamond drive. Gears would have to be replaced. 

Motor runs like a champ. I could hole shot new Revs and Polaris 800 and stay ahead. Clutches are fairly new also with some work done.