Supertech Inlaatkleppenset Honda D14-D16A6/D15B2 (set van 8)

STAINLESS STEEL BLACK NITRIDE INTAKE VALVES for Honda D14/D16A6/D15B CHECK THE DIMENSIONS ON YOUR ENGINE BEFORE ORDERING8 Supertech’s Black Nitride intake valves are manufactured from premium EV8 (21-4N) stainless steel and finished with a proprietary Black Nitride surface treatment. This coating provides superior hardness, reduced friction, and enhanced corrosion resistance compared to standard stainless valves. Each valve is precision-machined to OEM tolerances and undergoes rigorous quality control including dimensional inspection, hardness testing, and surface finish verification. The result is a valve that delivers consistent, reliable performance in both street and competition Honda D16A6 builds. KEY FEATURES EV8 / 21-4N stainless steel base material for high-temperature strength Black Nitride surface treatment for reduced friction and wear resistance Precision-ground 5.48mm stem and dished face for optimal sealing Swirl-polished underhead for improved intake flow 29.00mm head diameter, compatible with standard valve guides and seats Single Groove lock groove design for secure retention Available in standard and oversize diameters APPLICATIONS Ideal for naturally aspirated, turbocharged, and supercharged Honda D16A6 builds where reliable high-RPM airflow is critical. The swirl-polished intake valve improves flow while the Black Nitride surface resists wear in demanding builds. Technical Specifications Stainless Steel Black Nitride — black nitride Coated — superfinish – 66% smoother surface than a regular valve — Verified for Honda D16A6 Construction Valve Type one piece forged (non-magnetic) Coating black nitride Back-Cut yes Undercut Stem yes Material Stainless Steel Black Nitride Groove Type Single Groove Multi-Stage Heat Treatments & Stress Relieving yesDimensions & Weight Valve Size Standard Valve Face Type Dished Valve Length 115.00mm Head Diameter 29.00mm (std) Stem Diameter 5.48mm Length 115.00mmHardness & Finish Finish superfinish – 66% smoother surface than a regular valve Hardened Wafer Tip yes Key Dimensions StandardValve Size DishedValve Face Type 115.00mmValve Length 29.00mm (std)Head Diameter 5.48mmStem Diameter 115.00mmLengt