Chevrolet Small Block 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: 1.600"
• Stem Diameter: .3415”
• Installed Height: Stock
• O/A Length: 4.951"
• Tip Length: .290"
• Underhead Angle/Radius: 15° x 1/2”
• Margin: .060"
• Seat Width: .100”
• Top Of Head: 9° Dish
• Chrome Stems and Hard Tips
• Swirl Polished and Fully Machined
• Straight Stems
• XH-426 Stainless Exhaust Material

Benefits

• Best for drag and oval track racers operating below 8000 rpm - above which engine speed titanium valves are generally required
• Equal to the best that the competitors have to offer.

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

Applications

• 1997–2013 Chevrolet Corvette
• 1998–2002 Pontiac Firebird Formula, Trans Am
• 1998–2002 Chevrolet Camaro Z28
• 1998–2002 Chevrolet Camaro SS
• 2010–2015 Chevrolet Camaro SS (manual only)
• 2004–2006 Pontiac GTO
• 2005–2006 Chevrolet SSR
• 2006–2009 Chevrolet TrailBlazer SS
• 2004–2007 Cadillac CTS-V
• 2007–2013 Cadillac Escalade
• 2008–2009 Chevrolet Tahoe
• 2007–2013 GMC Yukon Denali/Denali XL
• 2007–2013 GMC Sierra Denali
• 2008–2009 Hummer H2
• 2009–2013 Chevrolet Silverado 1500
• 2009–2013 GMC Sierra 1500

What's In The Box?

• 8 - Valves

Warranty

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