SR20DE/T Black Nitrided Intake Valves by Supertech

Production of our racing valves begins with a one piece forging, where the head of the valve is forged under a slow two step process to keep a good material grain flow. The forging is then CNC machined in several steps to ensure the precision of the final dimensions. We then do another heat treatment for stress relieving followed by a nitride hardening treatment (or coating process depending on the application). Lastly, we do one more grinding, followed by our patented Superfinishing of the surface to ensure that each valve is free of any imperfections and the dimensions are precise.

Features

• ONE PIECE VALVE: Our valves are not finished from generic blanks rather they are specifically designed for each and every application. We work relentlessly, testing and researching every aspect trying to improve the air flow of our designs.
• DURABILITY: With every valve design we strive to maximize durability through higher fatigue resistance and tensile strength. Each valve tip is hardened beyond 52HRc.
• STRICT TOLERANCES: It’s unlikely you will find any of our competitor’s valves with stricter dimensional tolerances than our Supertech valves. Combine that with finished seats with equally strict run out tolerances and you won’t find a better sealing, better performing and easier to install solution anywhere!
• SUPERFINISH: In 2006 we introduced our stem Superfinishing as a standard addition to all of our valves and provided it at no additional cost. When our Superfinish is combined with our Black Nitrided valve it reduces the surface roughness to 1/3 of our chrome coated valve. The end result… unsurpassed performance and durability.
• HIGHER FLOW RATES: Optimum high flow rates are achieved by ensuring that our valves are manufactured with the best angles for each application. We consider back cut, under cut and valve head angles for each application to produce the optimum high flow rates for each application.

Applications

• Nissan GTIR 4cyl 2.0l Turbo SR20DET
• Nissan S13 4cyl 2.0l Turbo SR20DET
• Nissan S13 4cyl 2.0l Turbo SR20DET
• Nissan S14 4cyl 2.0l Turbo SR20DET
• Nissan S15 4cyl 2.0l Turbo SR20DET
• Nissan SE 4cyl 2.0l SR20DE
• Nissan SE 4cyl 2.0l SR20DE
• Nissan SE-R 4cyl 2.0l SR20DE
• Nissan SE-R 4cyl 2.0l SR20DE
• Nissan U12 4cyl 2.0l Turbo SR20DET
• Nissan U13 4cyl 2.0l Turbo SR20DET
• Nissan XE 4cyl 2.0l SR20DE)

Specifications

• Head Diameter: 34.15mm (std)
• Stem Diameter: 5.97mm
• Length: 101.40mm
• Material: Black Nitrided
• Valve Type: Intake

What's In The Box?

• 1 - Black Nitrided Intake Valve

Warranty

• Manufacturer Standard Warranty