Manley 11650B-4 Race Master Intake Valves 40mm VW Type 1 Single Groove

The Manley 11650B-4 Race Master intake valves are engineered specifically for Volkswagen 1200-1600 Type 1 engines, featuring a 40.0mm head diameter, 0.3130-inch stem diameter, and single groove design. Constructed from high-quality NK-842 stainless steel, these intake valves deliver unparalleled durability for racing applications.

Key Features:

• 40.0mm head diameter with 4.405-inch overall length
• 0.3130-inch stem diameter with single groove configuration
• Chrome stems and hardened valve tips for enhanced longevity and wear resistance
• Swirl polished under head areas and fully machined combustion faces for optimized airflow
• Race Master straight stem design provides extra material for outstanding durability
• 6-degree dish top with 10-degree underhead angle

Manley's Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM. These valves are also recommended for exhaust applications in alcohol engines, ensuring reliable performance even in demanding conditions. This set includes four intake valves.