The Briggs & Stratton Intek V-Twin Engine is a member of the company's Professional Series of small engines.. torque is 80 inch-pounds; socket size is 3/8 inch. Governor nut torque is 130 inch-pounds; socket size is 7/16 inch. Head bolt torque is 220 inch-pounds; socket size is 1/2 inch. Intake air horn torque is 45 inch-pounds; socket.. My engine is a Briggs & Stratton / Intek #33R877. If you need a head gasket kit I picked mine up on Amazon - https://amzn.to/2RvGvAX (affiliate)
For Briggs & Stratton Discount Parts Call 606-678-9623 or 606-561-4983 www.mymowerparts.com. Piston Pin Models 290000 - 352000 17.07 - 17.08mm (.6722"-.6725") 17.06mm (.6718"). COMMON TORQUE SPECIFICATIONS - ALL MODELS Alternator (to cylinder) 2.0 Nm (20 in. Lbs.). Starter Motor Thru Bolts 6.0 Nm (50 in. Lbs.) Valve Cover 3.0 Nm (25 in.. Torque spec on the rod bolts is 150 inch/pounds, and the top bolt must be torqued FIRST. (The bolt closest to the piston) The head bolts are 220 inch/pounds, and the torque should be laid on in several stages just to be safe. 1) Run a tap and die set into the bolt holes and over the head bolts if there is any doubt of cleanliness.