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Manley Stainless Steel Performance Valves


Manley
Manley Stainless Steel Performance Valves

Product images may differ from actual product appearance.

Manley Stainless Steel Performance Valves are held to the highest standards. Swirl-polished heads, chromed stems and hardened tips provide the advantage you expect from America's premier valve manufacturer! Sold Individually or 8/pkg. Made in the USA!

Budget Performance Replacement
  • For stock rebuild or mild performance applications
  • Superior to OE construction in every aspect

    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


  • 21 Products
    SB-Chevy with 11/32" stem
    Manley 11833-1 -
    660-11833-1
    Pro Flo Valve
  • Type: Exhaust
  • Length: Standard
  • Head Diameter: 1.880"
  • Stem Diameter: .3720"
  • $34.99
    Order Today Ships 05/09/16
    Ford 4.6L/5.4L SOHC 2V
    Manley 11640-1 -
    660-11640-1
    Intake Valve
  • Ford 4.6L/5.4L SOHC 2V
  • 45.5mm Head
  • .2750 Stem
  • $23.99
    Ships
    SB-Ford with 11/32" stem (for use with non-rail or roller rockers)
    Manley 11531-1 -
    660-11531-1
    Race Flo Valve
  • Type: Exhaust
  • Length: Standard
  • Head Diameter: 1.600"
  • Stem Diameter: .3415"
  • $22.99
    Order Today Ships 05/09/16
    Manley 11532-1 -
    660-11532-1
    Race Flo Valve
  • Type: Intake
  • Length: Standard
  • Head Diameter: 1.940"
  • Stem Diameter: .3415"
  • $22.99
    Order Today Ships 05/09/16
    SB-Ford with 11/32" stem (for use with rail-type rockers)
    Manley 11572-1 -
    660-11572-1
    Race Flo Valve
  • Type: Intake
  • Length: Standard
  • Head Diameter: 1.785"
  • Stem Diameter: .3415"
  • $22.99
    Order Today Ships 05/09/16
    Manley 11578-1 -
    660-11578-1
    Race Flo Valve
  • Type: Intake
  • Length: Standard
  • Head Diameter: 1.850"
  • Stem Diameter: .3415"
  • $22.99
    Order Today Ships 05/09/16
    Manley 11523-1 -
    660-11523-1
    Race Flo Valve
  • Type: Exhaust
  • Length: Standard
  • Head Diameter: 1.465"
  • Stem Diameter: .3415"
  • $22.99
    Order Today Ships 05/09/16
    Manley 11575-1 -
    660-11575-1
    Race Flo Valve
  • Type: Exhaust
  • Length: Standard
  • Head Diameter: 1.550"
  • Stem Diameter: .3415"
  • $22.99
    Order Today Ships 05/09/16
    Exhaust Valves
  • 11/32'' Valve Stem Diameter
  • Manley 11873-1 -
    660-11873-1
    Race Master Exhaust Valve
  • Ford 351C
  • 1.710'' Diameter
  • 11/32'' (0.3415'') Stem Diameter
  • 5.042'' Overall Length (Stock)
  • Stainless Steel
  • 1/pkg.
  • $22.99
    Order Today Ships 05/09/16
    Ford 351C with 11/32" stem
    Manley 11805-1 -
    660-11805-1
    Severe Duty Valve
  • Type: Exhaust
  • Length: Standard
  • Head Diameter: 1.710"
  • Stem Diameter: .3415"
  • $34.99
    Order Today Ships 05/09/16
    Ford 429-460 with 11/32" stem
      660-11875-1
    Race Master Valve
  • Type: Exhaust
  • Length: Standard
  • Head Diameter: 1.760"
  • Stem Diameter: .3415"
  • $22.99
    Order Today Ships 05/09/16
    Manley 11529-1 -
    660-11529-1
    Severe Duty Valve
  • Type: Exhaust
  • Length: Standard
  • Head Diameter: 1.760"
  • Stem Diameter: .3415"
  • $34.99
    Order Today Ships 05/09/16
    Manley 11801-1 -
    660-11801-1
    Severe Duty Valve
  • Type: Exhaust
  • Length: +.100"
  • Head Diameter: 1.760"
  • Stem Diameter: .3415"
  • $34.99
    Order Today Ships 05/09/16
    SB-Chrysler with 3/8" stem
    Manley 11782-1 -
    660-11782-1
    Severe Duty Valve
  • Type: Intake
  • Length: Standard
  • Head Diameter: 2.020"
  • Stem Diameter: .3715"
  • $22.99
    Order Today Ships 05/09/16
    BB-Chrysler with 3/8" stem
    Manley 11859-1 -
    660-11859-1
    Race Flo Valve
  • Type: Exhaust
  • Length: Standard
  • Head Diameter: 1.740"
  • Stem Diameter: .3720"
  • $22.99
    Order Today Ships 05/09/16
    Manley 11890-1 -
    660-11890-1
    Race Flo Valve
  • Type: Intake
  • Length: Standard
  • Head Diameter: 2.140"
  • Stem Diameter: .3725"
  • $22.99
    Order Today Ships 05/09/16
    Manley 11891-1 -
    660-11891-1
    Race Flo Valve
  • Type: Exhaust
  • Length: Standard
  • Head Diameter: 1.810"
  • Stem Diameter: .3720"
  • $22.99
    Order Today Ships 05/09/16
    Manley 11834-1 -
    660-11834-1
    Severe Duty Valve
  • Type: Intake
  • Length: Standard
  • Head Diameter: 2.140"
  • Stem Diameter: .3725"
  • $35.99
    Order Today Ships 05/09/16
    Manley 11839-1 -
    660-11839-1
    Severe Duty Valve
  • Type: Exhaust
  • Length: Standard
  • Head Diameter: 1.810"
  • Stem Diameter: .3720"
  • $34.99
    Order Today Ships 05/09/16
    BB-Chrysler
    Manley 11380-1 -
    660-11380-1
    Race Master Valve
  • For 440 Indy Cylinder Heads
  • Type: Intake
  • Length: 5.344"
  • Head Diameter: 2.190"
  • Stem Diameter: .3415"
  • $22.99
    Ships
    Manley 11381-1 -
    660-11381-1
    Race Master Valve
  • For 440 Indy Cylinder Heads
  • Type: Exhaust
  • Length: 5.400"
  • Head Diameter: 1.810"
  • Stem Diameter: .3415"
  • $22.99
    Ships

    21 Products