Manley Performance Big Block Chevrolet Street Flo Valves Stock 3/8" Stem Diameters

Street Flo Valves Stock 3/8" Stem Diameters

- NK-841 Stainless Intake Material
- Chrome Stems and Hard Tips
- Swirl Polished and Fully Machined
- Improved Flow with "Pro Flo" Underhead

Specs:

Type: Intake

Head Diameter: 2.190

Stem Diameter: .3715

Installed Height: Stock

O/A Length: 5.218

Tip Length: .220

Underhead Angle/Radius: Pro Flo: 10° x 3/8"

Margin: .050

Seat Width: .080

Top of Head: 5° Dish

Weight/ Grams: 135

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