1.656" Head Diameter, 5.390" Length, 45 Degree Exhaust Valve for International 400 U264 Power Unit Super M T-6 (61 Series) Super W6 W400 Gas LPG T-6 IU-6 Power Unit U6 Power Unit 450 W450 MV M I-6 OS-6 O-6 W-6 Tractor and C264, C248, C248, C264, C281
