Race Master Intake ValvesSmall Block Chevy2.080'' Diameter11/32'' (0.3415'') Stem Diameter4.940'' Overall Length (Stock)Stainless Steel8/pkg. Type: Intake Valve NK-842 MaterialHead Diameter: 2.080''Stem Diameter: 11/32'' / 0.3415''Installed Height: StockOverall Length: 4.940''Tip Length: 0.290''Underhead Angle / Radius: 12° x 3/8''Margin: 0.065''Seat Width: 0.080''Top of Head: 7° DishWeight / Grams: 124