Abstract: A balancing device for a V-type internal combustion engine in which the angle of the V is not equal to 90.degree.. The balancing device comprises a shaft that is rotatable about an axis parallel to the axis of the crankshaft and which is driven at the same speed as the crankshaft but in the opposite direction. A first balancing mass is affixed to this shaft for balancing the first order inertial forces of the reciprocating masses of the cylinders and a pair of masses disposed on opposite sides of the first mass for balancing the couples generated by the offset of the connecting rods of the cylinders.

Abstract: An improved cylinder head fastening arrangement for an internal combustion engine that permits location of overhead cam shafts directly over the cylinder head fasteners. The cam shafts are formed with access openings that extend through them which permits a tool to be passed for tightening of the cylinder head fasteners without removal of the cam shaft.

Abstract: An improved cylinder head fastening arrangement for an internal combustion engine that permits location of overhead cam shafts directly over the cylinder head fasteners. The cam shafts are formed with access openings that extend through them which permit a tool to be passed for tightening of the cylinder head fasteners without removal of the cam shaft.