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Honda Civic Type R K20 2.0 16v Supertech Inconel Exhaust Valve Kit (Turbo Use),  Valvetrain, SUPERTECH,  Dark Road Performance, [product_tags] - Dark Road Performance Ltd

    Honda Civic Type R K20 2.0 16v Supertech Inconel Exhaust Valve Kit (Turbo Use)


      Part Number

      HEVI-1021D Dished head

      HEVI-1022D Dished head


      Engine Type

      Honda Civic Type-R K20


      Head Size

      HEVI-1021D - 30mm (OE)

      HEVI-1022D - 30.5mm (+.5mm)


      Stem Diameter - 5.45mm

      Length - 108.85mm

      Material - Inconel


      INCONEL 751 - NICKEL BASE ALLOYS: This Nickel base alloy material is used for exhaust valves in engines that reach very high temperatures and its use is growing with the application of turbos and superchargers.

      Engine Valve Technology

      We apply more than 30 years of experience in the development of each and every Supertech racing valve we sell. Combine this experience with state of the art equipment such as ultrasonic tests, x-rays, laser measurement equipment, and applications like computerized Finite Element Analysis (FEA) and it is no wonder why supertech has some of the best performance products on the market.

      While this is more than most manufacturers we don’t stop there. We also do extensive testing working very closely with many of today's top engine builders in order to continuously improve our products. All of this is meant to insure Supertech's industry leading reputation for high flow rates, durability and uncompromising quality.

      Higher Flow Rates

      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 Dimensional 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!

      Color: Blue, Purple, White
      Size: 20, 24
      Material: 100% Polyester