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Manley 11139-8 - Extreme Duty Inconel Exhaust Valves Subaru EJ20 / EJ25 - 33mm

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Price: $359.99
Manufacturer: Manley
Part No.: 11139-8



Manley's Race Master Stainless Exhaust Valves for the Subaru EJ20 / EJ25 feature Chrome Stems, Hardened Tips, Fully Machined Surfaces and Swirl Polished Radii. These Valves are made from Xtreme Alloy Inconel Material which has proved to be the ultimate exhaust valve material for extreme applications. These valves are designed to withstand the rigors of extreme boost pressures commonly found in EJ20 / EJ25 Race Applications. We highly recommend these valves for engines running 30lbs + of boost and / or Nitrous and all Road Race, Rally and other types of Endurance applications. 
  Part Number                              11139-8           
  Type     Exhaust - Race 
  Head Diameter    33mm / +1mm
  Stem Diameter     5.96mm / .2345" 
  Installed Height     Stock
  Overall Length    104.75mm
  Tip Length     3.5mm
  Underhead Angle / Radius    25° x 11/32"  
  Margin    .060"                       
  Seat Width     .100" 
  Top of Head     20° Dish 

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