Hey Overkill, torque specs for the 900 head are 22 ft/lbs. Make sure when you do torque them that you follow the correct pattern/order for which bolt to begin and finish at. pm me if you want I can direct you to a downloadable PDF service manual for all the 2005 Polaris "Deep Snow" machines, it has a lot of good info for servicing/repairing the 900s.