Manley Performance Small Block Chevrolet Race Master Valves 5/16" (.311") Stem Intake

Features

- No Need for Inserted Tips or Wear Caps
- Chrome Stems and Hard Tips
- Swirl Polished and Fully Machined
- Thin Stem for Increased Flow and Light Weight

Specification

Head Diameter: 2.055
Stem Diameter: .3110
Installed Height: .100 Longer
O/A Length: 5.010
Tip Length: .290
Underhead Angle/Radius: 10° x 3/8”
Seat Width: .050
Margin: .080
Top of Head: 5° Dish
Wgt/Grams: 110