Manley 12324-8 Race Master Intake Valve Small Block Chevy 2.180" Head 5/16" Stem

The Manley 12324-8 Race Master intake valve is engineered for bracket racing, drag racing, and oval track applications running below 8000 RPM. Manufactured from premium NK-842 stainless steel material, this valve delivers superior fatigue strength and durability compared to standard EV-8 alloy valves.

Key Specifications:

• Head Diameter: 2.180 inches
• Stem Diameter: 5/16 inch (0.3110 inch)
• Overall Length: 5.110 inches
• Installed Height: +0.200 inch longer than standard
• Tip Length: 0.290 inch
• Underhead Angle/Radius: 10° x 3/8 inch
• Margin: 0.050 inch
• Seat Width: 0.080 inch
• Weight: 120 grams per valve

Premium Construction Features:

• Hard chrome-plated stem with 0.0002 inch thick coating for superior wear resistance
• Hardened valve tip resists wear and prevents cracking
• 5° dish top of head design for improved flow characteristics
• Standard straight valve stem design
• Swirl-polished and precision machined

Manley's Race Master series valves are constructed from exclusive NK-842 intake material that provides exceptional strength and resistance to chordal fractures.