Manley Performance 31mm Extreme Duty Exhaust Valves w/ Triple Groove - Set of 8 | Multiple Ford Fitments (12623-8)

31mm Extreme Duty Exhaust Valves w/ Triple Groove - Set of 8 by Manley Performance

Top Fuel and Funny Car drag racers, Big Block Chevy marine enthusiasts, and Small Block Chevy restricted carburetor circle track competitors will all benefit by the use of XtremeAlloy exhaust valves. Exotic steel is required simply because of the enormous heat imposed on the exhaust valves in these applications.

Features

• Head Diameter: 31mm
• Stem Diameter: .2345"
• Installed Height: Stock
• O/A Length: 4.274"
• Tip Length: .305"
• Underhead Angle/Radius: 25° x 11/32”
• Margin: .050”
• Seat Width: .080"
• Top Of Head: 20° Dish
• Chrome Stems and Hard Tips
• Swirl Polished and Fully Machined
• XH-432 XtremeAlloy

Benefits

• Suited for Top Fuel, Funny Car and Marine Engine
• More Hot Hardness and High Temperature Strength than any competitive offerings

Please Note: Must use factory locks for triple grooves and use Manley’s Bead Loc® P/N 13086-32 with the Bead Loc® single radius groove.

Applications

• 2011–present Ford Mustang GT
• 2012–2013 Ford Mustang Boss 302
• 2011–present Ford F-150

What's In The Box?

• 8 - Valves

Warranty

• Manley products, due to their intended use, are sold without warranty.