Supertech Black Nitride Intake Valves – Set of 4 | Multiple Fitments (VWIVN-1014-4) Supertech

Volkswagen 1.8L Black Nitride Intake Valves by Supertech

Supertech intake valves are made exclusively from an enhanced versions of EV8 (21-4N) steel. This is the highest grade of steel available and provides the strength to withstand just about any application.

Features

• Head Diam: 40.00mm(std)
• Material: Stainless Steel 21-4N
• Groove Type: Triple Groove
• Length: 91.60mm
• Stem Diam: 6.97mm
• Magnetic friction welded wafer, Hardened to 52 HRC min
• One piece forged valve (non-magnetic)
• Black Nitride for superior hardness keeping core ductility
• Back-cut angle
• “Superfinish” valve stem with a surface roughness of about 1/3 of a regular valve
• Undercut stem

Benefits

• Improves durability and reduces carbon build up
• Less Friction
• Better Flow Rates
• Better Sealing

Applications

• 1985-1987 Audi 4000
• 1988-1990 Audi 80
• 1988 Audi 90
• 1998-2003 Volkswagen Beetle
• 1985-1993 Volkswagen Cabriolet
• 1990-1992 Volkswagen Corrado
• 1997-1999 Volkswagen Eurovan
• 1987-1993 Volkswagen Fox
• 1985-2003 Volkswagen Golf
• 1985-2004 Volkswagen Jetta
• 1984-1985 Volkswagen Quantum
• 1984-1988 Volkswagen Scirocco

What’s In The Box?

• 4 – Intake Valves

Warranty

• Due to the nature of the application, these parts are sold without any express warranty or any implied warranty of merchantability, or fitness for a particular purpose.