Supertech Exhaust Valves for 1994-2005 Mazda Miata 1.8L BP Engines
Exhaust Valves for 1994-2005 Mazda Miata 1.8L BP EnginesMAEVN-1204Head Diam: 28.00mm (STD) Stem Diam: 5.94mm Length: 102.6mm (+0.6mm)Material: Black Nitride Groove Type: Single Groove Valve Type: ExhaustMAEVI-1204Head Diam: 28.00mm (STD) Stem Diam: 5.94mm Length: 102.6mm (+0.6mm)Material: Inconel Groove Type: Single Groove Valve Type: ExhaustMAEVN-1206Head Diam: 29.00mm (+1mm) Stem Diam: 5.94mm Length: 102.6mm (+0.6mm)Material: Black Nitride Groove Type: Single Groove Valve Type: ExhaustMAEVI-1206Head Diam: 29.00mm (+1mm) Stem Diam: 5.94mm Length: 102.6mm (+0.6mm)Material: Inconel Groove Type: Single Groove Valve Type: Exhaust*Single Valves Are Also Available In The Drop Down Menu Below* 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)