Manley 11893-8 Race Master Stainless Steel Intake Valve 1.940" BBC

The Manley 11893-8 is a high-performance Race Master intake valve designed specifically for Big Block Chevrolet (BBC) engines. This precision-engineered valve features a 1.940-inch head diameter with +0.100-inch extended stem length, making it ideal for performance and racing applications requiring custom valve train geometry.

Key Features:

• 1.940-inch valve head diameter optimized for BBC cylinder heads
• +0.100-inch extended stem length for modified deck heights and rocker geometry
• Race Master series construction with premium stainless steel for superior durability
• Precision-ground stems and swirl-polished heads for reduced friction
• Undercut stem design reduces weight while maintaining strength
• Heat-treated for maximum wear resistance in high-performance applications

Manley Race Master valves are manufactured to exacting tolerances using advanced materials and heat treatment processes, making them a trusted choice for engine builders and racers demanding maximum performance and reliability. The extended stem length allows for proper valve train geometry in engines with modified deck heights or custom rocker arm setups.