Impreza 2.5 RS Sedan AWD F4-2.5L SOHC (2002)
Valve Seat: Specifications
Valve seat Refacing angle
90 deg
Contacting width-Intake
STD
1.0 mm
Limit 1.7 mm
Contacting width-Exhaust
STD
1.4 mm
Limit 2.1 mm