Manley Performance Small Block Chevrolet Street Master Valves 1.560

Street Master Valves

- XH-424 Stainless Exhaust Material
- Chrome Stems and Hard Tips
- Swirl Polished and Fully Machined
- Straight Stems

Specs:

Type: Exhaust

Head Diameter: 1.560

Stem Diameter: .3415

Installed Height: Stock

O/A Length: 4.911

Tip Length: .250

Underhead Angle/Radius: 15° x 1/2"

Margin: .060

Seat Width: .100

Top of Head: 10° Dish

Weight/ Grams: 99

Set of 8