Manley Extreme Duty Exhaust Valve Set Chevy LS3 12357-8

Manley Extreme Duty Valves are made out of XH-432 XtremeAlloy Material. Manufactured with chrome stems, hard tips, swirl polished and machined heads. They use OE style radius keeper grooves. 

• Brand: Manley
• Manufacturer Part Number: 12357-8
• Type: Exhaust
• Head Diameter: 1.600"
• Stem Diameter: .3136"
• Installed Height: .300 Longer
• Overall Length: 5.215
• Tip Length: .160
• Underhead Angle / Radius: 25 Degree x 7/16"
• Margin: .065
• Seat Width: .115
• Top of Head: 18 Degree Dish
• Weight: 96g