Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single)

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Today, Manley Performance continues to re-define itself in a high performance aftermarket industry that is constantly evolving. We've developed new products for growing markets such as sport compact, Ford modular and Chevy LS; as well as maintained our leadership role with the traditional V-8 engine business.

Features:

• XH-432 XtremeAlloy Material.
• Swirl Polished and Machined.
• Chrome Stems and Hard Tips.
• O.E. Style Radius Keeper Grooves.

Specifications:

• Type: Exhaust
• 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

Fitment:

• Chevrolet 5.3L LS | L83 2014 Up Small Block

Notes:

• Sold individually