Admission :0,15 mm (0,006 po)
Échappement:0,25 mm (0,010 po)
1972-77 Opel Rekord 1900
1978-86 Opel Rekord 2000/20E/21E
Admission :0,20 mm (0,008 po)
Échappement:0,35 mm (0,014 po)