Ferrea F6129 6000 Series 2.250" Intake Valve Stainless Steel Competition

The Ferrea F6129 is a 6000 Series Competition intake valve engineered for high-performance and racing applications. Featuring a 2.250-inch head diameter, 11/32-inch stem diameter, and 5.271-inch overall length with a 0.250-inch tip length, this valve is purpose-built for demanding, high-RPM engine environments. The 12-degree Super Flo design promotes improved airflow for added power output. Sold individually.

Key Features:

• Head Diameter: 2.250 inches
• Stem Diameter: 11/32 inch
• Overall Length: 5.271 inches
• Tip Length: 0.250 inches
• Seat Angle: 45 degrees
• Back Cut: 12-degree Super Flo design for enhanced airflow
• Material: EV8 stainless steel — used on both intake and exhaust valves
• Manufacturing: Exclusive two-step slow forging process
• Stem Treatment: Hard chrome stems for reduced wear
• Tip: Friction-welded hard tips for durability under high spring pressures
• Finish: Swirl-polished head for superior flow characteristics
• Available in Stock and +0.050 lengths

Ferrea's 6000 Series Competition valves are designed to deliver excellent reliability under high spring pressures and aggressive roller cam profiles. Built using race-proven technology developed through programs in Formula 1, IndyCar, NASCAR, and drag racing, these valves offer performance-grade quality at a competitive price point. Special heat treatment and stress-relieving processes ensure long service life in high-stress applications.