GROUP: EngineSUBGROUP: Cylinder HeadDATE: 2-28-68 SUBJECT: Cylinder Head Bolt Tightness MODELS: Alpine, Imp, Minx, and Arrow Effective immediately, the cylinder head bolt torque loading figure has been reduced from 48 ft. lbs. to 45 ft. lbs. Please correct the appropriate Service Manuals. NOTE: Check tightness of bolts: Cast Iron Head – HOT Aluminum Head – (more…)