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Dart 127322

Small Block Chevy SHP Assembled Cylinder Head 200cc Intake Ports

Dart 127322

301-127322

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Dart 127322 Small Block Chevy SHP Assembled Cylinder Head 200cc Intake Ports $606.46
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

  • Specifications:

    Accessory Bolt Holes Drilled
    Yes
    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

    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. !

    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
    JEGS EZ Kits are designed by JEGS professionals to ensure that you get all the correct parts you need.

  • 127322 - Dart SHP Small Block Chevy Aluminum Cylinder Heads is rated 4.5 out of 5 by 2.
    Rated 5 out of 5 by from Now installed Update on my prior review. I ordered the Comp Cams Magnum Roller Rocker Arms (self aligning) part number 249-1417-16 with Sealed Power stock 5/16” pushrods. This setup required me to drill out the areas where the pushrods pass through the heads in six spots by the intake runners. I used a 7/8” bit then a 15/16” until I had enough clearance so the pushrod had enough clearance as not to bind. I was pretty nervous in doing this to $1200 heads. I originally tried a round file, then a die grinder, then decided that all would take way too long and went with the drill. The wall to the intake runners in my experience were easily thick enough for this modification. You can see in the pic below the untouched hole on the left and on the right is the one I had to modify. Take your time, use a shop vac or two to collect all the aluminum shards when drilling and you’ll be fine. Really looking forward to adjusting the lash and moving forward on this engine today!
    Date published: 2017-10-07
    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
    • y_2017, m_12, d_13, h_24
    • bvseo_bulk, prod_bvrr, vn_bulk_2.0.3
    • cp_1, bvpage1
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    • loc_en_US, sid_10001_10001_1685415, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs

    what are the flow numbers at .700 or .600 lift i see 264cfm at .500. and 180 at .600 on the exhaust side

    Asked by: Flyin frog tech1
    These heads only have flow ratings to .600" lift.
    Answered by: Rusty B
    Date published: 2017-11-13
    • y_2017, m_12, d_14, h_1CST
    • bvseo_bulk, prod_bvqa, vn_bulk_2.0.3
    • cp_1, bvpage1
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    • loc_en_US, sid_10001_10001_1685415, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs
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