Supertech Exhaust Valve Kit For Honda K24Z7 - Z3 K24A2 K20Z3 K20Z1 K20A2 K20A3
Part #HEVN-1020D-8
Supertech Fitment
- Acura K20A2 / K20A3 / K20A4
- Acura K24A2
- Honda K20A2 / K20A3 / K20A4 / K20Z1 / K20Z3
- Honda K24A2
- Honda K24Z7 - Z3
Supertech Features
- EV8 / 23-8N stainless steel base material for high-temperature strength
- Black Nitride surface treatment for reduced friction and wear resistance
- Precision-ground 5.45mm stem and dished face for optimal sealing
- Swirl-polished underhead for improved exhaust flow
- 30.00mm head diameter, compatible with standard valve guides and seats
- Single Groove lock groove design for secure retention
Supertech Specs
- Multi-Stage Heat Treatments & Stress Relieving: Yes
- Undercut Stem: No
- Back-Cut: No
- Valve Type: One piece forged (non-magnetic)
- Coating: Black nitride
- Material: Stainless steel 23-8n
- Groove Type: Single groove
- Valve Length: 108.65mm
- Valve Face Type: Dished
- Valve Size: Standard
- Head Diameter: 30.00mm (std)
- Length: 108.65mm
- Stem Diameter: 5.45mm
STAINLESS STEEL BLACK NITRIDE EXHAUST VALVES for Honda K20A2 / K20A3 / K20A4 / K20Z1 / K20Z3Supertech\'s Black Nitride exhaust valves for the Honda K20A2 / K20A3 / K20A4 / K20Z1 / K20Z3 are manufactured from premium 23-8N 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 K20A2 / K20A3 / K20A4 / K20Z1 / K20Z3 builds.APPLICATIONSIdeal for naturally aspirated, turbocharged, and supercharged Honda K20A2 / K20A3 / K20A4 / K20Z1 / K20Z3 builds where exhaust valve durability is critical. The Black Nitride coating excels in high-EGT environments and is particularly well-suited for engines running lean air-fuel ratios or aggressive ignition timing.
