Skunk2 Alpha Series valves are manufactured from HNV3 martensitic steel (IN) and EV8 austenitic steel (EX) one-piece forgings, each valve is heat-treated using a proprietary process for extraordinary strength and durability. Alpha Series Valves feature hard chrome plating and fully machined valve heads. Other valves may appear similar, but only Alpha Series Valves feature specially designed valve head profiles to optimize airflow. Skunk2 designs, develops, and tests its entire valvetrain lineup in-house to ensure superior quality and maximum performance gains. During development, each valvetrain component is tested both on the dyno and the road. Manufactured from the best materials available in a state-of-the-art manufacturing environment ensure that Skunk2 valvetrain components provide exceptional performance, reliability, and quality. These components remain standard-issue on each Skunk2 vehicle that we build and support.

Add Skunk2 Pro Series or Alpha Series Valve Springs and Titanium Retainers for ultimate valvetrain stability.; Overall Valve Length (Intake/Exhaust): 118.5mm/116mm; Head Diameter (Intake/Exhaust): 30.00mm/26.00mm; Stem Thickness (Intake/Exhaust): 5.48mm

Alpha Series Valve Set; Stock Size; Std Compression; Dish Face-Intake 30mm x 118.85mm x 5.48mm/Exhaust 26mm x 116mm x 5.45mm; Head Dia.-Intake/Exhaust 30.00mm/26.00mm; Set of 16;

Skunk2 Alpha Series Honda/Acura Stock Size D Series Valve Set (Standard Compression)

Alpha Series Valve Set

D Series Std Comp Va