Nissan Sentra SE-R 2.0L(SR20DET) 1991-1998 Race Master exhaust valves. 31.15mm head diam., 6.96mm stem diam., stock length 102.4mm O/A, 3.5mm tip length, 15° X 1/2" underhead angle/radius, .065" margin, .080" X 45° seat, 9° dish.
Nissan Sentra SE-R 2.0L(SR20DET) 1991-1998 Race Master exhaust valves. 31.15mm head diam., 6.96mm stem diam., stock length 102.4mm O/A, 3.5mm tip length, 15° X 1/2" underhead angle/radius, .065" margin, .080" X 45° seat, 9° dish.