Manley Performance 1.88in Race Master Exhaust Valves – Set of 8 | Multiple Fitments (11761-8) Manley Performance

Big Block Chevrolet Race Master Exhaust Valves – Set of 8 by Manley Performance

Race Master, and the Pro Flo versions identified as Race Flo valves, are manufactured of XH-426 material for the exhausts and NK-842 for the intakes. This series of valves is targeted at the bracket, drag and oval track racers operating below 8000 rpm – above which engine speed titanium valves are generally required.

Any engine builder successfully using EV-8 alloy ( 21-4N ) valves will find in this series of Manley valves a superior piece at a most attractive price. The Ultimate Tensile Strength charts on this page and the next, show the Manley Race Series to be equal to the best that the competitors have to offer.

Features

• 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: .100”
• Top Of Head: 6° Dish
• Chrome Stems and Hard Tips
• Swirl Polished and Fully Machined
• XH-426 Stainless Exhaust Material

Benefits

• 11/32” Stems for Improved Flow, Lighter Weight
• Suits drag and oval track racers operating below 8000 rpm
• Recommended Exhaust Valves for Alcohol Engines

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

Applications

• 1965, 1970–1974 Chevrolet Corvette
• 1965–1975 Chevrolet Chevelle
• 1967–1972 Chevrolet Camaro
• 1968–1970 Chevrolet Nova
• 1970–1972 Chevrolet Monte Carlo, Chevrolet trucks
• 1965–1972 Chevrolet Biscayne, Chevrolet Bel Air, Chevrolet Impala, Chevrolet Impala SS, Chevrolet Caprice
• 1970–1976 Chevrolet Caprice
• 1970–1975 Chevrolet Monte Carlo
• 1970–1975 Chevrolet El Camino
• 1971–1972 GMC Sprint

What’s In The Box?

• 8 – Valves

Warranty

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