Ferrea F6231 6000 Series Competition Intake Valve 2.020" Head 0.3135" Stem GM LS-Series

The Ferrea F6231 is a high-performance 6000 Series competition intake valve engineered specifically for GM LS-series engines. This valve features a 2.020-inch head diameter, 0.3135-inch (8mm) stem diameter, 4.900-inch overall length, and 0.160-inch tip length with a radius groove design and 12-degree Super Flow profile.

Advanced Manufacturing Process:

• Constructed from EV8 stainless steel using Ferrea's exclusive two-step slow forging process
• Special heat-treatment and stress relieving process for maximum durability
• Hard chrome stems for superior wear resistance
• Friction-welded hard tips to withstand high-rpm operation
• Swirl polished head for optimized airflow

Performance Features:

• Designed for excellent reliability under high spring pressures and roller cam environments
• Superior fatigue resistance and tensile strength compared to competitors
• Flow improvements engineered for today's sophisticated racing engines
• Budget-friendly competition valve without compromising quality

Ideal for drag racing, circle track, and high-performance street applications where reliability and performance are critical. This valve is designed to withstand extreme operating conditions while delivering the flow characteristics needed for maximum power output.