IN/EX: EX D: 33.5 mm d: 6 mm L : 107.9 mm a : 45° Head Style: CV Stem Groove: K GIEFFERef: 3706 Motore: 256CI anno: 2921/ 3651/ 4200 Certification: IS09001, TS16949 Mark & Model: Eng.Vortec 256C.I.