Manley 11668-8 Stainless Steel Intake Valve 2.080" Head

The Manley 11668-8 is a premium stainless steel intake valve engineered for high-performance applications. Featuring a 2.080" head diameter and .3125" stem diameter, this valve delivers exceptional flow characteristics and durability for demanding racing and street performance engines.

Key Specifications:

• Head Diameter: 2.080 inches
• Stem Diameter: 0.3125 inches (5/16")
• Overall Length: 4.990 inches
• Tip Length: 0.120 inches
• Underhead Design: Pro Flo 12 x 3/8"
• Margin: 0.050 inches
• Seat Width: 0.085 inches
• Top of Head: 7 Dish design
• Installed Height: Stock specification

Premium Construction Features:

• Manufactured from Manley's Race Series stainless steel alloy
• Chrome-finished stems for enhanced durability and reduced friction
• Swirl polished under head for optimized airflow
• Fully hardened tips for extended valve train life
• Completely machined combustion face for precise sealing
• Pro Flo stem design with reduced diameter in fillet area for increased flow and reduced weight
• Precision-controlled margin heights and stem-to-seat concentricity

Backed by over 40 years of manufacturing expertise, Manley Performance valves represent the industry standard for stainless steel valve technology. This valve is designed to outflow and outperform in applications ranging from mild street builds to extreme 1000+ horsepower race engines. The Pro Flo design maximizes airflow while minimizing reciprocating mass, delivering measurable performance gains in both naturally aspirated and forced induction applications.