Manley Performance Big Block Chevrolet Race Master Valves 11/32" Stem Diameters 1.880

Race Master Valves 11/32" Stem Diameters

- XH-426 Stainless Exhaust Material
- Swirl Polished and Fully Machined
- Chrome Stems and Hard Tips
- 11/32" Stems for Improved Flow, Lighter Weight

Specs:

Type: Exhaust

Head Diameter: 1.880

Stem Diameter: .3415

Installed Height: Stock 

O/A Length: 5.422

Tip Length: .250

Underhead Angle/Radius: 25° x 3/8"

Margin: .075

Seat Width: .100

Top of Head: 20° Dish

Weight/ Grams: 127

Set of 8