Manley Performance Big Block Chevrolet Severe Duty "Pro Flo" Valves Stock 3/8" Stem 2.300

Severe Duty "Pro Flo" Valves Stock 3/8" Stem Diameters

- NK-844 Stainless Intake Material
- Chrome Stems and Hard Tips
- Swirl Polished and Fully Machined
- Improved Flow with "Pro Flo" Underhead

Specs:

Type: Intake

Head Diameter: 2.300

Stem Diameter: .3720

Installed Height: .100 Longer

O/A Length: 5.325

Tip Length: .220

Underhead Angle/Radius: Pro Flo: 12° x 7/16"

Margin: .065

Seat Width: .080

Top of Head: 7° Dish

Weight/ Grams: 160

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