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ProMaxx Performance Big Block Chevy Aluminum Cylinder Heads


ProMaxx Performance
ProMaxx Performance Big Block Chevy Aluminum Cylinder Heads

ProMaxx heads have started a revolution in the performance world. They have custom designed a head to meet the demands of the Big Block Chevy world, while keeping the quality high and the price reasonable. These BB-Chevy heads come in an As-Cast series or Full CNC-Ported series. The As-Cast series features ''as-cast'' runners and combustion chambers with hand blended valve bowls. The Full CNC-series heads have professionally machined ports and combustion chambers that flow and perform as good as or better than some of the best cylinder heads in the industry. Basic components include U.S. made bronze valve guides, and ProMaxx 5-angle valve job. Assembled heads include 21-4N stainless valves, springs, retainers, 7/16'' rocker studs, guide plates, and viton seals (Bare heads do not include these items).

Features:
  • A356-T6 Aluminum Castings
  • Efficient Chamber Design
  • 5-Angle Competition Valve Job
  • Diamond-Honed Bronze Guides
  • Available with As-Cast or Full CNC'd Ports and Chambers
  • Sold in Pairs, 2/pkg.
  • Assembled in the USA


  • 20 Products

    317 Series Aluminum Cylinder Heads
  • 317cc Intake Port Volume
  • ProMaxx Performance 9317 - ProMaxx Performance Big Block Chevy Aluminum Cylinder Heads
    723-9317
    317 Series Aluminum Cylinder Heads
  • Big Block Chevy
  • As-Cast
  • 317cc Intake Ports
  • 119cc Combustion Chamber
  • 2.25'' Intake / 1.88'' Exhaust Valve Sizes
  • Bare, 2/pkg
  • FREE
    SHIPPING
    & HANDLING!
    $1,161.99
    Order Today Ships 05/12/16
    ProMaxx Performance 9318 - ProMaxx Performance Big Block Chevy Aluminum Cylinder Heads
    723-9318
    317 Series Aluminum Cylinder Heads
  • Big Block Chevy
  • As-Cast
  • 317cc Intake Ports
  • 119cc Combustion Chamber
  • 2.25'' Intake / 1.88'' Exhaust Valves
  • 7/16'' Rocker Arm Studs
  • .600'' Max Lift
  • Steel Retainers
  • Assembled, 2/pkg
  • FREE
    SHIPPING
    & HANDLING!
    $1,486.99
    Ships
    ProMaxx Performance 9319 - ProMaxx Performance Big Block Chevy Aluminum Cylinder Heads
    723-9319
    317 Series Aluminum Cylinder Heads
  • Big Block Chevy
  • As-Cast
  • 317cc Intake Ports
  • 119cc Combustion Chamber
  • 2.25'' Intake / 1.88'' Exhaust Valves
  • 7/16'' Rocker Arm Studs
  • .700'' Max Lift
  • Steel Retainers
  • Assembled, 2/pkg
  • FREE
    SHIPPING
    & HANDLING!
    $1,485.99
    Order Today Ships 05/12/16
    ProMaxx Performance 9320 - ProMaxx Performance Big Block Chevy Aluminum Cylinder Heads
    723-9320
    317 Series Aluminum Cylinder Heads
  • Big Block Chevy
  • As-Cast
  • 317cc Intake Ports
  • 119cc Combustion Chamber
  • 2.25'' Intake / 1.88'' Exhaust Valves
  • 7/16'' Rocker Arm Studs
  • .850'' Max Lift
  • Titanium Retainers
  • Assembled, 2/pkg
  • FREE
    SHIPPING
    & HANDLING!
    $2,138.99
    Order Today Ships 05/12/16

    320 Series Aluminum Cylinder Heads
  • 320cc Intake Port Volume
  • ProMaxx Performance 2210 - ProMaxx Performance Big Block Chevy Aluminum Cylinder Heads
    723-2210
    320 Series Aluminum Cylinder Heads
  • Big Block Chevy
  • As-Cast
  • 320cc Intake Ports
  • 119cc Combustion Chamber
  • 2.25'' Intake / 1.88'' Exhaust Valve Sizes
  • Bare, 2/pkg
  • FREE
    SHIPPING
    & HANDLING!
    $1,025.00
    Ships
    ProMaxx Performance 2211 - ProMaxx Performance Big Block Chevy Aluminum Cylinder Heads
    723-2211
    320 Series Aluminum Cylinder Heads
  • Big Block Chevy
  • As-Cast
  • 320cc Intake Ports
  • 119cc Combustion Chamber
  • 2.25'' Intake / 1.88'' Exhaust Valves
  • 7/16'' Rocker Arm Studs
  • .600'' Max Lift
  • Steel Retainers
  • Assembled, 2/pkg
  • FREE
    SHIPPING
    & HANDLING!
    $1,440.00
    Order Today Ships 05/09/16
    ProMaxx Performance 2214 - ProMaxx Performance Big Block Chevy Aluminum Cylinder Heads
    723-2214
    320 Series Aluminum Cylinder Heads
  • Big Block Chevy
  • As-Cast
  • 320cc Intake Ports
  • 119cc Combustion Chamber
  • 2.25'' Intake / 1.88'' Exhaust Valves
  • 7/16'' Rocker Arm Studs
  • .700'' Max Lift
  • Steel Retainers
  • Assembled, 2/pkg
  • FREE
    SHIPPING
    & HANDLING!
    $1,645.00
    Order Today Ships 05/12/16
    ProMaxx Performance 2216 - ProMaxx Performance Big Block Chevy Aluminum Cylinder Heads
    723-2216
    320 Series Aluminum Cylinder Heads
  • Big Block Chevy
  • As-Cast
  • 320cc Intake Ports
  • 119cc Combustion Chamber
  • 2.25'' Intake / 1.88'' Exhaust Valves
  • 7/16'' Rocker Arm Studs
  • .800'' Max Lift
  • Titanium Retainers
  • Assembled, 2/pkg
  • FREE
    SHIPPING
    & HANDLING!
    $1,955.00
    Order Today Ships 05/12/16

    340 CNC Ported Series Aluminum Cylinder Heads
  • 340cc Intake Port Volume
  • ProMaxx Performance 9340 - ProMaxx Performance Big Block Chevy Aluminum Cylinder Heads
    723-9340
    340 Series Aluminum Cylinder Heads
  • Big Block Chevy
  • 100% CNC-Ported
  • 340cc Intake Ports
  • 121cc Combustion Chamber
  • 2.30'' Intake / 1.88'' Exhaust Valve Sizes
  • Bare, 2/pkg
  • FREE
    SHIPPING
    & HANDLING!
    $1,758.99
    Order Today Ships 05/12/16
    ProMaxx Performance 9341 - ProMaxx Performance Big Block Chevy Aluminum Cylinder Heads
    723-9341
    340 Series Aluminum Cylinder Heads
  • Big Block Chevy
  • 100% CNC-Ported
  • 340cc Intake Ports
  • 121cc Combustion Chamber
  • 2.30'' Intake / 1.88'' Exhaust Valves
  • 7/16'' Rocker Arm Studs
  • .600'' Max Lift
  • Steel Retainers
  • Assembled, 2/pkg
  • FREE
    SHIPPING
    & HANDLING!
    $2,189.99
    Order Today Ships 05/12/16
    ProMaxx Performance 9342 - ProMaxx Performance Big Block Chevy Aluminum Cylinder Heads
    723-9342
    340 Series Aluminum Cylinder Heads
  • Big Block Chevy
  • 100% CNC-Ported
  • 340cc Intake Ports
  • 121cc Combustion Chamber
  • 2.30'' Intake / 1.88'' Exhaust Valves
  • 7/16'' Rocker Arm Studs
  • .700'' Max Lift
  • Steel Retainers
  • Assembled, 2/pkg
  • FREE
    SHIPPING
    & HANDLING!
    $2,361.99
    Order Today Ships 05/12/16
    ProMaxx Performance 9343 - ProMaxx Performance Big Block Chevy Aluminum Cylinder Heads
    723-9343
    340 Series Aluminum Cylinder Heads
  • Big Block Chevy
  • 100% CNC-Ported
  • 340cc Intake Ports
  • 121cc Combustion Chamber
  • 2.30'' Intake / 1.88'' Exhaust Valves
  • 7/16'' Rocker Arm Studs
  • .900'' Max Lift
  • Titanium Retainers
  • Assembled, 2/pkg
  • FREE
    SHIPPING
    & HANDLING!
    $2,735.99
    Order Today Ships 05/12/16

    360 Series Aluminum Cylinder Heads
  • 360cc Intake Port Volume
  • ProMaxx Performance 2250 - ProMaxx Performance Big Block Chevy Aluminum Cylinder Heads
    723-2250
    360 Series Aluminum Cylinder Heads
  • Big Block Chevy
  • As-Cast
  • 360cc Intake Ports
  • 119cc Combustion Chamber
  • 2.30'' Intake / 1.88'' Exhaust Valve Sizes
  • Bare, 2/pkg
  • FREE
    SHIPPING
    & HANDLING!
    $1,314.00
    Order Today Ships 05/12/16
    ProMaxx Performance 2254 - ProMaxx Performance Big Block Chevy Aluminum Cylinder Heads
    723-2254
    360 Series Aluminum Cylinder Heads
  • Big Block Chevy
  • As-Cast
  • 360cc Intake Ports
  • 119cc Combustion Chamber
  • 2.30'' Intake / 1.88'' Exhaust Valves
  • 7/16'' Rocker Arm Studs
  • .600'' Max Lift
  • Steel Retainers
  • Assembled, 2/pkg
  • FREE
    SHIPPING
    & HANDLING!
    $1,850.00
    Ships
    ProMaxx Performance 2252 - ProMaxx Performance Big Block Chevy Aluminum Cylinder Heads
    723-2252
    360 Series Aluminum Cylinder Heads
  • Big Block Chevy
  • As-Cast
  • 360cc Intake Ports
  • 119cc Combustion Chamber
  • 2.30'' Intake / 1.88'' Exhaust Valves
  • 7/16'' Rocker Arm Studs
  • .700'' Max Lift
  • Steel Retainers
  • Assembled, 2/pkg
  • FREE
    SHIPPING
    & HANDLING!
    $1,934.00
    Order Today Ships 05/12/16
    ProMaxx Performance 2256 - ProMaxx Performance Big Block Chevy Aluminum Cylinder Heads
    723-2256
    360 Series Aluminum Cylinder Heads
  • Big Block Chevy
  • As-Cast
  • 360cc Intake Ports
  • 119cc Combustion Chamber
  • 2.30'' Intake / 1.88'' Exhaust Valves
  • 7/16'' Rocker Arm Studs
  • .800'' Max Lift
  • Titanium Retainers
  • Assembled, 2/pkg
  • FREE
    SHIPPING
    & HANDLING!
    $2,244.00
    Ships

    370 CNC Ported Series Aluminum Cylinder Heads
  • 370cc Intake Port Volume
  • ProMaxx Performance 9370 - ProMaxx Performance Big Block Chevy Aluminum Cylinder Heads
    723-9370
    370 Series Aluminum Cylinder Heads
  • Big Block Chevy
  • 100% CNC-Ported
  • 370cc Intake Ports
  • 121cc Combustion Chamber
  • 2.35'' Intake / 1.88'' Exhaust Valve Sizes
  • Bare, 2/pkg
  • FREE
    SHIPPING
    & HANDLING!
    $1,970.99
    Order Today Ships 05/12/16
    ProMaxx Performance 9371 - ProMaxx Performance Big Block Chevy Aluminum Cylinder Heads
    723-9371
    370 Series Aluminum Cylinder Heads
  • Big Block Chevy
  • 100% CNC-Ported
  • 370cc Intake Ports
  • 121cc Combustion Chamber
  • 2.35'' Intake / 1.88'' Exhaust Valves
  • 7/16'' Rocker Arm Studs
  • .600'' Max Lift
  • Steel Retainers
  • Assembled, 2/pkg
  • FREE
    SHIPPING
    & HANDLING!
    $2,401.99
    Order Today Ships 05/12/16
    ProMaxx Performance 9372 - ProMaxx Performance Big Block Chevy Aluminum Cylinder Heads
    723-9372
    370 Series Aluminum Cylinder Heads
  • Big Block Chevy
  • 100% CNC-Ported
  • 370cc Intake Ports
  • 121cc Combustion Chamber
  • 2.35'' Intake / 1.88'' Exhaust Valves
  • 7/16'' Rocker Arm Studs
  • .700'' Max Lift
  • Steel Retainers
  • Assembled, 2/pkg
  • FREE
    SHIPPING
    & HANDLING!
    $2,572.99
    Order Today Ships 05/12/16
    ProMaxx Performance 9373 - ProMaxx Performance Big Block Chevy Aluminum Cylinder Heads
    723-9373
    370 Series Aluminum Cylinder Heads
  • Big Block Chevy
  • 100% CNC-Ported
  • 370cc Intake Ports
  • 121cc Combustion Chamber
  • 2.35'' Intake / 1.88'' Exhaust Valves
  • 7/16'' Rocker Arm Studs
  • .900'' Max Lift
  • Titanium Retainers
  • Assembled, 2/pkg
  • FREE
    SHIPPING
    & HANDLING!
    $2,947.99
    Order Today Ships 05/12/16

    20 Products