Big Block Chevrolet Street Flo Exhaust Valves - Set of 8 by Manley Performance

Designed for the enthusiast preparing a stock or mildly modified street engine, or a bracket racer seeking maximum value for his dollar, the Performance or Street Series valves are the perfect choice. These dependable valves are also offered in Street Flo versions providing significant flow gains without head porting. All valves in both these series feature chrome stems, hard tips, swirl polished underhead areas, and fully machined combustion faces.

Features

• Head Diameter: 1.880"
• Stem Diameter: .3715”
• Installed Height: Stock
• O/A Length: 5.350"
• Tip Length: .220"
• Underhead Angle/Radius: Pro Flo 10° x 3/8”
• Margin: .060"
• Seat Width: .100”
• Top Of Head: 5° Dish
• Chrome Stems and Hard Tips
• Swirl Polished and Fully Machined
• XH-424 Stainless Exhaust Material

Benefits

• Designed for the enthusiast preparing a stock or mildly modified street engine, or a bracket racer seeking maximum value for his dollar
• Up to 40% flow increase in small port OE style cylinder heads
• Proven performance improvement on the flow bench

Please Note: The image provided is generic and may not be an accurate representation of the product you will receive

Applications

• 1965, 1968–1974 Chevrolet Corvette
• 1965–1975 Chevrolet Chevelle
• 1967–1972 Chevrolet Camaro
• 1968–1970 Chevrolet Nova
• 1970–1975 Chevrolet Monte Carlo
• 1970–1975 Chevrolet El Camino
• 1965–1972 Chevrolet Biscayne, Chevrolet Bel Air, Chevrolet Impala, Chevrolet Impala SS
• 1965–1976 Chevrolet Caprice
• 1996–1999 Chevrolet Suburban 2500/GMC Suburban 2500

What's In The Box?

• 8 - Valves

Warranty

• Manley products, due to their intended use, are sold without warranty.