Upgrade your Honda D16A1 engine with the Supertech Black Nitrided Exhaust Valve set, designed for enhanced durability and performance. This set includes eight valves, each featuring a +0.5mm oversize dimension to ensure precise fitment and optimal engine operation. Crafted with high-quality materials, these valves are treated with a black nitriding process that significantly increases surface hardness and resistance to wear, extending the lifespan of your engine components.

Each valve is engineered to meet or exceed OEM specifications, providing reliable performance under demanding conditions. The nitriding process also offers improved resistance to corrosion and thermal fatigue, which is critical for high-performance or heavily used engines. Installation of these valves can help restore lost compression and improve exhaust flow, contributing to better engine efficiency and power output.

Supertech's commitment to quality ensures that these valves are manufactured with strict adherence to industry standards. Whether you're rebuilding an engine or upgrading to enhance performance, these valves provide a cost-effective solution that combines durability with precision engineering. Suitable for various automotive applications, they are a reliable choice for enthusiasts and professional mechanics alike.

Features:

• Single Groove lock groove design for secure valve retention
• Oversize +0.5mm valve diameter for optimal flow characteristics
• Dished face style improves combustion efficiency
• 104.60mm total valve length ensures proper fit and seating
• High-performance materials for strength, fatigue resistance, and thermal stability
• Material: High-quality steel with black nitriding surface treatment
• Oversize: +0.5mm for precise fitment and optimal performance
• Set Includes: Eight exhaust valves for complete engine set replacement
• Durability: Enhanced surface hardness for extended wear resistance
• Corrosion Resistance: The Nitriding process offers superior protection against rust and thermal fatigue