Manley Performance Race Master 1.615in. Exhaust Valves | Chevrolet LS7 (11689-8)

Manley Performance Race Master 1.615in. Exhaust Valves | Chevrolet LS7 (11689-8)

Manley Performance
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Race Master 1.615in. Exhaust Valves for Chevrolet LS7 Engines by Manley Performance

Manley's Race Master Exhaust Valves are constructed from XH-426 Stainless Steel for unparalleled durability. Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance. The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.

Measurements

  • Head Diameter: 1.615in.
  • Stem Diameter: 0.3136in.
  • Installed Height: Stock
  • O/A Length: 5.23in.
  • Tip Length: 0.29in.
  • Underhead Angle / Radius: 25°x7/16"
  • Margin: 0.075
  • Seat Width: 0.1
  • Top of Head: 18° Dish
  • Weight: 98g

Applications

  • 2005-2013 Chevrolet Corvette Z06 & ZR1

What's In The Box?

  • 8 - Valves

Warranty

  • Limited Manufacturers Warranty

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