Descriptionfitment, allow , maximum lift, and to give maximum life. KPMI® Red valve stem seals are resistant to high temperatures, petroleum products and the corrosive gasses that are the by-products of combustion. These seals retain their ability to seal in situations where other materials could harden and allow oil to enter the combustion chamber causing detonation, carbon build up and a loss of power. The Red Ones are truly the racers choice. TypeIntake/ ExhaustMaterialRed Viton®Reference See Figure 1QuantityVariousStem Diameter5.5mmOverall Length0.630″Seal O.D.1.043″A0.435”±0.005”B—C0.480″NoteUse the diagram and specifications to ensure your valve guide shares the same dimensions for a proper fitUnique Identifier No.FR327789_01GAUSFITMENT LISTIndian® Scout™ 4V 1200’s 2015-2024 (Pkg. of 8 )