Manley 12623-8 Extreme Duty Stainless Steel Exhaust Valves 31mm Ford Coyote 5.0L

The Manley 12623-8 Extreme Duty exhaust valve set is engineered for high-performance Ford Coyote 5.0L DOHC 4-valve engines. These premium stainless steel valves are designed to withstand the demanding conditions of supercharged applications, bracket racing, and high-performance street engines.

Key Specifications:

• Head diameter: 31.00mm (1.220 inches)
• Stem diameter: 0.2345 inches
• Overall length: 4.274 inches
• Tip length: 0.305 inches
• Margin width: 0.050 inches
• Seat width: 0.080 inches
• Top of head: 25-degree dish
• Underhead angle: 30 degrees
• Underhead radius: 11/32 inch

Features and Benefits:

• Manufactured from high-quality stainless steel for exceptional durability
• Chrome stems provide enhanced wear resistance
• Hardened valve tips extend service life and reduce wear
• Extreme Duty construction handles demanding racing and performance applications
• Precision-manufactured to strict tolerances for reliable performance

The Manley Extreme Duty series is trusted by professional racers and performance enthusiasts for its superior quality and proven reliability. These valves are ideal for engines running forced induction, high-RPM applications, or aggressive cam profiles where durability is critical.