Manley Performance Small Block Chevrolet Severe Duty Exhaust Valves 1.625

Severe Duty Exhaust Valves

- XH-428 Stainless Material
- Hard Tips
- Swirl Polished
- Fully Machined

Specs:

Type: Exhaust

Head Diameter: 1.625

Stem Diameter: .3415

Installed Height: Stock 

O/A Length: 4.921

Tip Length: .250

Underhead Angle/Radius: 30° x 1/2"

Margin: .070

Seat Width: .100

Top of Head: 25° Dish

Weight/ Grams: 109

Set of 1