2004 Polaris Freedom, Virage, Genesis and MSX-140 Service Manual., Page 102Get this manual
ENGINECOOLING SYSTEMS Engine AssemblyAll Engines 18Temporarily install exhaust manifold to cylinders dry and tighten bolts lightlyThis will ensure proper alignment of cylinders to manifold
19Torque cylinder base nuts to specifications listed on pages 3.3 to 3.4Cylinder Base Nut Torque 32ft.lbs(43Nm)
20Verify that Oring grooves in cylinders are cleanInspect surfaces of cylinder and cylinder head for nicks or scratches21Lightly oil new cylinder head Orings and install in groovesBe sure Oring is properly positioned and groove is clean and free from debris22Install cylinder heads and cylinder head support ringsTorque to specificationsNOTE: Cylinder heads must be positioned correctly with the wide opening toward the intake and the small opening toward the exhaustThe exhaust side will be labeled: "EX"