968 Cabriolet L4-2990cc 3.0L DOHC (1993)
Valve Seat: Specifications
Valve seat width
Inlet .................................................................................................................................................................................................. 1.5 mm (0.06 in)
Exhaust ............................................................................................................................................................................................. 1.8 mm (0.07 in)
Seat angle .................................................................................................................................................................................................................... 45°
Outer correction angle ................................................................................................................................................................................................. 30°
Inner correction angle .................................................................................................................................................................................................. 60°