1999 Polaris SLH, SLTH, SLX, SLTX, PRO785 Factory Service Manual, Page 184Get this manual
ENGINECOOLING AssemblyPolaris Engines 32 Install cylinder heads carefully along with support rings (where applicable)Torque bolts evenly in three steps to specificationNOTE: On all 700 and 1050cc engines, cylinder heads must be positioned correctly with the wide opening toward the intake and the small opening (marked "ex") toward the exhaust
33 Lightly grease new inner and outer cover a-rings and place in groovesBe sure a-rings are properly positioned and grooves in cover are clean and free from debris34 Install covers with water manifold outlets on exhaust side on 700 and 1050cc enginesDo not tighten the bolts at this time