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Manley Severe Duty Pro Flo Valve, Chevrolet SB, 11/32", 1.600" Exhaust, Standard Length, Each |
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Manley Severe Duty "Pro Flo" Exhaust Valves
The Pro Flo Shape is a Manley original. Proven performance on the flow bench. Up to 40% flow increase. Manley's signature in the performance and industry. The XH-428 stainless exhaust material is offered by no competitor in the world. Ultimate tensile strength of the XH-428 at 1500 degrees F is nearly double of the competitors EV-8. Perfect for severe applications where optimum flo is a must.
Severe Duty XH-428 Stainless Exhaust Material
Chrome Stems Hard Tips
Fully Machined Swirl Polished
Increased Flow with "Pro Flo" Underhead
Part Type: Exhaust Valves
Style: Manley Severe Duty "Pro Flo" Valves
Application: Chevrolet Small Block V8
Head Diameter: 1.600"
Stem Diameter: 11/32" (.3415")
Installed Height: Standard
Overall Length: 4.936"
Material: XH-428 Stainless Exhaust Material
1-Piece Design: Yes
Hard Chrome Stems: Yes
Undercut Stem: Yes
Black Nitrided: No
Swirl Polished: Yes
Lock Groove Type: Conventional
Lock Groove Quantity: Single
Tip Length: .250"
Under Head Angle: 12 Degrees
Under Head Radius: .375"
Margin: .085"
Seat Width: .080"
Top of Head: 7 Degree Dish
Weight: 98 grams
Manufacturer: Manley Performance
Manufacturer's Part Number: 11827-1
Weight: 0.25 lbs.
Warranty: Race Application, No warranty expressed or implied.
Quantity: Sold as Each
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