2004 Polaris Pro X Factory Service Manual, Page 232Get this manual
ENGINE 11Install each cylinderTorque cylinder base nuts in sequence illustrated in beginning of chapter
Cylinder Base Nut Torque 2428 ft.lbs(3339 Nm)
12Install the cylinder head gasket with the "EX" on the exhaust side, and "UP" on the intake side of the engine
13Insert the dowels into the flywheel housing