Ferrea Competition Plus Exhaust Valves - SB Chevy - 11/32" Stem, 1.600" Head Size, 4.960" Overall Length - 12 Super Flo. (Super Alloy). Stk/+.050 - (Set of 8) 36004R These different members

These different members

The TECH-1 ZX V4’s pre-curved shape has been increased from the previous version

In order to achieve a flatter flow curve

1955-1960 GMC Truck

featuring a black powder coated steel hub and 6 aluminum blades

Ferrea Competition Plus Exhaust Valves - SB Chevy - 11/32" Stem, 1.600" Head Size, 4.960" Overall Length - 12 Super Flo. (Super Alloy). Stk/+.050 - (Set of 8) 36004R These different membersFerrea Competition Plus Valves have built a reputation as the industry's most reliable extreme duty valve. We, at Ferrea, are dedicated to providing the absolute best product on the market. Our extensive R & D programs provide tehcnological gains, which are implemented in each of our competiton plus valves. They are engineered for higt rpm, high horsepower racing engines, and are chose by many top NASCAR, Drag, and Oval & Sprint Car racing teams. To