cylinder head

Hey guys. Im new here to the forum and was hoping to gain some incite and helpful information from here. I recently picked up an 03 pred 500 that a guy had ordered all the part to redo the top end and never put it back together. Ive got a service manual and am planning to put it back together...

Hi I am new here and to Polaris somewhat. I am replacing the intake valves on my 2005 Polaris Predator 500 and I ordered the kibblewhite Black Diamond Valves. My question in do I have to do something to the seats to get them to sit right because I know you cant grind the black diamond valves...