Manley 11730-8 Race Master Intake Valves Big Block Chevy 2.300" 11/32" Stem Set of 8

The Manley 11730-8 Race Master intake valves are engineered for high-performance street engines, bracket racing, and oval track applications. These premium valves are designed specifically for Big Block Chevrolet engines and deliver the quality and durability that serious engine builders demand.

Key Features:

• Constructed from NK-842 stainless steel material for superior fatigue strength and longevity
• 2.300-inch head diameter provides excellent flow characteristics
• 11/32-inch (0.342-inch) valve stem diameter for precise fit
• 5.244-inch overall length with 0.250-inch hardened valve tip
• Chrome-plated stems with 0.0002-inch thick coating for enhanced wear resistance
• 5-degree dish valve head design optimizes combustion chamber efficiency
• Swirl polished and fully machined for race-ready performance
• 1-groove conventional lock groove style
• Recommended for engines operating below 8,000 RPM

Each valve features a hardened tip that is superior to competitor's puddled stellite, which can crack and erode. The valve head and underhead shapes have been refined since the late 1960s to maximize airflow. Sold as a complete set of 8 intake valves weighing approximately 133 grams each.