Ferrea F1158P-1 Competition Plus Exhaust Valve Stem Small Block Chevy - 1.650 11/32

The Ferrea F1158P-1 is a high-performance Competition Plus exhaust valve designed for Small Block Chevrolet engines. This premium racing valve features a 1.650-inch head diameter, 11/32-inch stem diameter, and an overall length of 5.510 inches with a 14-degree S-Flo design for improved flow characteristics.

Competition Plus Series Features:

• Manufactured from ultra-high strength, high-temperature nickel stainless steel alloy for extreme durability
• Aerospace quality EV8-Z18 alloy construction provides exceptional tensile strength
• Exclusive two-step slow forging process ensures proper grain flow and eliminates material structure damage
• 48-hour heat treatment and stress-relief cycle for superior molecular integrity
• Avionics-quality hard chrome coating with specially applied hard tip for extended service life
• Swirl polished head for optimal combustion chamber performance

Ferrea Competition Plus valves are engineered to withstand extreme exhaust temperatures and high RPM operation, making them ideal for turbocharged, supercharged, and nitrous oxide applications. These valves are trusted by professional racing teams in Formula 1, IndyCar, NASCAR, and drag racing competition. This valve is sold individually and provides the ultimate combination of strength, reliability, and performance for high-horsepower engine builds.