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Dart 127322 - Dart SHP Small Block Chevy Aluminum Cylinder Heads



Dart 127322 - Dart SHP Small Block Chevy Aluminum Cylinder Heads
Dart 127322 - Dart SHP Small Block Chevy Aluminum Cylinder Heads

JEGS Part Number: 301-127322

Small Block Chevy SHP Assembled Cylinder Head
  • 200cc Intake Ports
  • 64cc Combustion Chambers
  • 2.02" Int/1.60" Exh Valves
  • 1.437" Dual Valve Springs
  • 3/8" Rocker Studs
  • 5/16" Guide Plates
  • Straight Plugs
  • 1/pkg

    Dart 127322 Details

    200cc Intake Runners

  • 0.620" Max Lift

    Flow:
  • Intake: 264 cfm @ 0.500"
  • Exhaust: 180 cfm @ 0.600"

    Recommended Gaskets:
    Head:
  • 350 Block (Fel-Pro 375-1003)
  • 400 Block (Fel-Pro 375-1014)
    Intake:
  • 200cc (Fel-Pro 375-1205)
    Exhaust:
  • All (Fel-Pro 375-1404 or 375-1405)

    Recommended Spark Plug:
  • 0.750" Reach Gasketed 5/8" Hex

  • Dart SHP Small Block Chevy Aluminum Cylinder Heads

    Dart's Special High Performance (SHP) Small Block Chevy Aluminum Cylinder Head program was developed to offer quality, lightweight, aluminum heads for hot rodders and budget minded racers. Richard Maskin realized the need for a high quality small block cylinder heads that is a superior, yet affordable option to the "cookie cutter" cylinder heads on the market. Dart has incorporated the most desirable features of each iteration of the small block Chevy into each cylinder head option. Made in the USA!

    Features:
  • Cast from A356-T6 aluminum alloy
  • Bolt on compatibility: standard valve angle and spacing to allow the use of off the shelf pistons and vale train components
  • Multi-angle intake seats and radiused exhaust seats dramatically increase air/fuel flow
  • Hardened exhaust seats are compatible with unleaded gasoline
  • Manganese bronze valve guides extend cylinder head life
  • Straight spark plug configuration
  • Sold Individually, 1/pkg

  • Dart 127322

    Accessory Bolt Holes Drilled
    Yes
    Calculator
    Compression Calculator
    CNC-Machined Combustion Chamber
    No
    CNC-Machined Exhaust Runner
    No
    CNC-Machined Intake Runner
    No
    Combustion Chamber Style
    Heart
    Combustion Chamber Volume (cc)
    64
    Cylinder Head Finish
    Natural
    Cylinder Head Material
    Aluminum
    Cylinder Head Style
    Assembled
    Damper Spring Included
    No
    Exhaust Port Location
    Standard
    Exhaust Port Shape
    Square
    Exhaust Runner Volume (cc)
    75
    Exhaust Valve Angle
    23
    Exhaust Valve Diameter (in.)
    1.6
    Exhaust Valves Included
    Yes
    Guideplates Included
    Yes
    Heat Crossover
    No
    Intake Port Location
    Standard
    Intake Runner Volume (cc)
    200
    Intake Valve Angle
    23
    Intake Valve Diameter (in.)
    2.02
    Intake Valves Included
    Yes
    Lock Style
    10 degree
    Locks Included
    Yes
    Machined for O-Ring
    No
    Maximum Valve Lift (in.)
    0.62
    Number of Springs Per Valve
    Dual
    Oiling Style
    Through pushrod
    Outside Diameter of Outer Spring (in.)
    1.437
    Quantity
    Sold individually
    Retainer Material
    Steel
    Retainers Included
    Yes
    Rocker Arm Nuts Included
    No
    Rocker Arm Studs Included
    Yes
    Rocker Arms Included
    No
    Spark Plug Style
    Straight
    Steam Holes Drilled
    No
    Valve Cover Mounting Style
    Center and perimeter bolt
    Valve Guide Material
    Manganese bronze
    Valve Guides Included
    Yes
    Valve Seat Machine Style
    5-angle intake/2-angle exhaust
    Valve Seat Material
    Powdered metal
    Valve Seats Machined
    Yes
    Valve Springs Included
    Yes
    Valve Stem Seal Style
    Umbrella
    Valve Stem Seals Included
    Yes
    Manufacturer's Part Number:
    127322
    Rated 4 out of 5 by from So far, so good.... I bought these to replace a pair of junk Procomp PC3001 heads. These are heavier castings and the springs/valves are better quality. The only issue is that one of the heads had one of the valve cover bolts holes drilled off center. It still works with my valve covers. For the money, these are a great head.
    Date published: 2015-06-09
    • 2016-05-05T09:35CST
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