Manley Performance 1.560in Head Diameter Extreme Duty Exhaust Valves - Set of 8 | Multiple Chevrolet/GMC Fitments (12363-8)

Extreme Duty Series Stainless Steel Exhaust Valves - Set of 8 by Manley Performance

Top Fuel and Funny Car drag racers, Big Block Chevy marine enthusiasts, and Small Block Chevy restricted carburetor circle track competitors will all benefit by the use of XtremeAlloy exhaust valves. Exotic steel is required simply because of the enormous heat imposed on the exhaust valves in these applications.

Features

• Head Diameter : 1.560
• Stem Diameter : .3136
• Installed Height : Stock
• O/A Length : 5.208
• Tip Length : .160
• Underhead Angle/Radius : 25° x 7/16”
• Margin : .065
• Seat Width : .110
• Top of Head : 18° Dish
• Wgt/Grams : 98
• XH-432 XtremeAlloy Material
• Chrome Stems and Hard Tips
• Swirl Polished and Fully Machined
• O.E. Style Radius Keeper Grooves

Benefits

• Top Fuel, Funny Car and Marine Engine Exhaust Valves
• More Hot Hardness and High Temperature Strength than any competitive offerings

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

Applications

• 2014-Present Chevrolet Silverado
• 2015-Present Chevrolet Tahoe
• 2015-Present Chevrolet Suburban
• 2014-Present GMC Sierra
• 2015-Present GMC Yukon/Yukon XL

What's In The Box?

• 8 - Exhaust Valve

Warranty

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