Manley Stainless Steel Performance Valves

Street Flo

• For street/strip applications
• Fully-machined combustion faces and necked-down stems
  
  Street Master
• For bracket racer engines and street performance
• Straight stems provide extra meat for outstanding durability
  
  Race Flo
• For mild drag or circle track engines and street performance
• Necked-down stems for less weight and more flow
  
  Race Master
• For mild drag or circle track engines and street performance
• Similar to Race Flo valves except with straight stems
  
  Pro Flo
• For drag, circle track, and hot street engines
• Stainless steel undercut design for less weight and up to 40% more flow
  
  Severe Duty
• For applications with high spring pressures and high RPM
• One-piece stainless steel design
  
  Extreme Duty
• For drag racing applications with 8000+ RPM
• Offshore powerboat and Hi performance marine applications
• Also, for engine builders using EV-8, high performance street, bracket racers, oval track and sportsman racers