Supertech Intake Valves for Audi R8 4.2L 32v V8 FSI Engines
VWIVN-1002S
Head Diam: 33.85mm (STD)
Stem Diam: 5.98mm
Length: 103.90mm
Material: Black Nitride
Groove Type: Single Groove
Valve Type: Intake
Keepers: KPR-6S/7 (Included)
VWIVN-1004S
Head Diam: 34.85mm (+1mm)
Stem Diam: 5.98mm
Length: 103.90mm
Material: Black Nitride
Groove Type: Single Groove
Valve Type: Intake
Keepers: KPR-6S/7 (Included)
*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) 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 coated valves feature a harder surface area and a smoother finish, providing less friction and subsequently longer life.
VWIVN-1002S
Head Diam: 33.85mm (STD)
Stem Diam: 5.98mm
Length: 103.90mm
Material: Black Nitride
Groove Type: Single Groove
Valve Type: Intake
Keepers: KPR-6S/7 (Included)
VWIVN-1004S
Head Diam: 34.85mm (+1mm)
Stem Diam: 5.98mm
Length: 103.90mm
Material: Black Nitride
Groove Type: Single Groove
Valve Type: Intake
Keepers: KPR-6S/7 (Included)
*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) 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 coated valves feature a harder surface area and a smoother finish, providing less friction and subsequently longer life.