Manley Severe Duty Series Exhaust Valve Set Chevy LS7 11679-8

Manley Severe Duty series performance valves are a great choice for your high performance or race engine. All valves are made from stainless steel (intakes are NK-844; exhausts are XH-428) with chrome stems and hardened valve tips. Severe Duty series valves are made of superior materials, are fully machined and swirl polished, and are available with either undercut "Pro Flo" stems or straight stems..

• Brand: Manley
• Manufacturer Part Number: 11679-8
• Valve Type: Exhaust
• Valve Head Diameter: 1.610in / 40.894mm
• Valve Stem Diameter: .314in / 7.97mm
• Overall Length: 5.230in / 132.842mm
• Undercut Stem: No
• Swirl-Polished: Yes
• Valve Tip Length: .290in / 7.366mm
• Material: XH-428 Stainless Steel
• Lock Groove Quantity: 1-Groove
• Lock Groove Style: Conventional
• Weight: 103g
• Valve Head Style: 18 Degree Dish
• Seat Width: .100in