Manley Performance Small Block Chevrolet Race Master Valves 5/16" (.311) Stem 1.940,+.100

Race Master Valves 5/16" (.311") Stem

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

Specs:

Type: Intake

Head Diameter: 1.940 

Stem Diameter: .3110 

Installed Height: .100 Longer

O/A Length: 5.010

Tip Length: .290

Underhead Angle/Radius: 10° x 3/8"

Margin: .050

Seat Width: .080

Top of Head: 5° Dish

Weight/ Grams: 105

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