Manley Performance Small Block Chevrolet Race Master Valves 5/16" (.311) Stem 1.600,+.300

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: Exhaust

Head Diameter: 1.600

Stem Diameter: .3110 

Installed Height: .300 Longer

O/A Length: 5.240

Tip Length: .290

Underhead Angle/Radius: 15° x 1/2"

Margin: .080

Seat Width: .100

Top of Head: 9° Dish

Weight/ Grams: 96

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