Skunk2 Alpha Series Stock Size Valve Set, Standard Compression, Honda Civic/del Sol 1992-2000 (310-05-1600)

Fits select 1992-2000 Honda Civic and Civic del Sol (EX / Si) models with D-Series engines.

Skunk2 Alpha Series valves are engineered for high-performance builds that require superior strength and optimized airflow without changing the stock valve size. Each valve is manufactured from a one-piece forging—using HNV3 martensitic steel for the intake and EV8 austenitic steel for the exhaust—and undergoes a proprietary heat-treatment process for exceptional durability under high-stress conditions. These valves feature hard chrome-plated stems to reduce friction and fully machined heads designed with specific profiles to maximize flow.

By utilizing advanced materials and precise machining, Skunk2 Alpha Series valves are 3-10g lighter than factory components, improving valvetrain stability and response. Whether rebuilding a street engine or a dedicated track car, these components provide the reliability needed for sustained high-RPM use.

• Manufacturer Part Number: 310-05-1600
• Intake Valve: 118.5mm Length, 30.00mm Head, 5.48mm Stem
• Exhaust Valve: 116.0mm Length, 26.00mm Head, 5.45mm Stem
• One-piece forged stainless-steel alloy construction
• Hard chrome plating and fully machined valve heads
• Standard compression stock sizing for direct replacement
• Weight: 3-10g lighter than stock