Ferrea Stainless Valves Pontiac 400 455 Intake & Exhaust 1.770 2.110 Ram Air IV

  One set (16pcs) of  5000 Series Ferrea Stainless Steel Valves     This is a set of 16 valves for Pontiac 350, 400, 428 & 455 Ram Air IV     Intake Part# F5066 Head Diameter: 2.110" Steam Diameter: 11/32" Overall Lenght: 5.213" Tip Lenght: .250" 12 Deg Under Cut-Dish Head 30 Deg Seat     Exhaust Part# F5063 Head Diameter: 1.770" Steam Diameter: 11/32" Overall Lenght: 5.230" Tip Lenght: .250" 12 Deg Under Cut-Dish Head Ram Air IV   One-Piece Forging Stainless Steel Proprietary Heat Tratment Process Hard Chrome Stems Fully CNC Machined