944 L4-2681cc 2.7L (1989)
Valve Seat: Specifications
Valve seat width
Inlet ................................................................................................................................................................................................ 1.7 mm (0.067 in)
Exhaust ........................................................................................................................................................................................... 2.0 mm (0.079 in)
Seat angle .................................................................................................................................................................................................................... 45°
Outer correction angle ................................................................................................................................................................................................. 30°
Inner correction angle .................................................................................................................................................................................................. 60°