Supertech Intake & Exhaust Valves for Mazda 626 MX6 Protegé 2.0L FS Engines

Intake & Exhaust Valves for Mazda 626 MX6 Protegé 2.0L FS EnginesIntake ValvesMEAVN-2002Head Diam: 32.50mm (+1mm)Stem Diam: 5.97mm Length: 89.9mmMaterial: Black Nitride Groove Type: Single Groove Valve Type: Intake Quantity: 8Exhaust ValvesMAEVI-2002Head Diam: 28.6mm (STD)Stem Diam: 5.96mm Length: 89.9mm Material: InconelGroove Type: Single Groove Valve Type: ExhaustQuantity: 8*Complete Set of 8 Intake and 8 Exhaust Valves* Our stainless steel intake valves are manufactured from an enhanced version of EV8 (21-4N) steel. We have chosen this material specifically because it’s the highest grade of steel available and provides the strength to withstand just about any application. Our exhaust valves are made from EV16 (21-8N) or EV8-Nb/w for even greater strength at higher temperatures. Our stainless steel valves are one piece forged valves, and depending on the application feature hardened tips, hardened seats, swirl polish, undercut, and our black nitride coating. Our black nitride co