Manley Performance Big Block Chevrolet Severe Duty Valves 11/32 Stem Diameters

Severe Duty Valves 11/32" Stem Diameters

- XH-428 Stainless Exhaust Material
- Chrome Stems and Hard Tips
- Swirl Polished and Fully Machined

Specs:

Type: Exhaust

Head Diameter: 1.880

Stem Diameter: .3415

Installed Height: .100 Longer

O/A Length: 5.522

Tip Length: .250

Underhead Angle/Radius: 10° x 3/8" 

Margin: .075

Seat Width: .085

Top of Head: 6° Dish

Weight/ Grams: 125

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