Ferrea Chrysler HEMI 426 – 1.94in 5/16in 4.91in 0.25in 22 Deg Flo Comp Plus Exhaust Valve | Multiple Fitments (F1521P) Ferrea Racing

Chrysler Hemi 426 CID (5/16) Competition Plus Exhaust Valves by Ferrea

To manufacture the valves special aerospace quality alloys were used, including the EV8-Z18, which provides high tensile strength. An exclusive two-step slow forging process ensures proper grain flow and virtually eliminates any damage to the material structure. The valves are then heat-treated and stress-relieved over a 48-hour period, which is the crucial base of our molecular integrity. These valves feature avionics-quality hard chrome along with a specially applied hard tip. The goal was to achieve an optimum balance of flow, velocity and efficiency in the design of these valves. As a result, these valves incorporate smoother radiuses and unique undercuts. These exclusive features are what make the Ferrea Competition Plus Valves excel in performance and reliability!

The evolution in volumetric efficiency of today’s competition engines has increased the average engine EGT. These higher Exhaust Gas Temperatures decrease the longevity of the valves as well as creating higher levels of metallurgical fatigue. These increased stress loads create an environment in the engine conducive to valve failure.

Features

• Smoother radiuses
• Unique undercuts
• 22º Flo. Ray Barton
• Avionics-quality hard chrome with a specially applied hard tip

Benefits

• Tensile strength increased by 20% at high temperature
• Fatigue resistance increased by 20%
• Valve seat life increased by 25%

Applications

• 1966–1970 Dodge Coronet/Plymouth Belvedere
• 1966–1971 Plymouth Satellite
• 1966–1971 Dodge Charger
• 1967–1971 Plymouth GTX
• 1968 Dodge Dart Super Stock
• 1968 Plymouth Barracuda
• 1968–1971 Dodge Super Bee
• 1968–1971 Plymouth Road Runner
• 1969 Dodge Charger R/T
• 1969 Dodge Charger Daytona
• 1970 Plymouth Superbird
• 1970–1971 Plymouth Hemi ‘Cuda
• 1970–1971 Dodge Challenger

What’s In The Box?

• 1 – Exhaust Valve

Warranty

• No Warranty