This engine and cylinders were off a 1990 yz 250. The engine has low hours with full hot rods bottom end. Comes with two cylinders one Is bored out to 280 and the other I'm pretty sure is standard bore, they could both probraly use a good hone but both seem to be in very good condition cosmetically. This also Comes with weisco piston and rings and wrist pin. Crank moves well with no play side to side. Can only do 25 pictures on eBay so please let me know If you need more photos or have any questions.