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Dart 19900171

Big Block Chevy Pro 1 Assembled Cylinder Head

Dart 19900171

301-19900171

jegs shipping
FREE Shipping
Ships 12/15/16 if Ordered Today
Dart 19900171 Big Block Chevy Pro 1 Assembled Cylinder Head $1,419.18
Big Block Chevy Pro 1
  • Assembled Cylinder Head
  • Valves: 2.190" Int/1.880" Exh
  • Valve Springs: 1.550"

  • 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)
    110
    Cylinder Head Finish
    Natural
    Cylinder Head Material
    Aluminum
    Cylinder Head Style
    Assembled
    Damper Spring Included
    No
    Exhaust Port Location
    Raised
    Exhaust Port Shape
    Square
    Exhaust Valve Angle
    24
    Exhaust Valve Diameter (in.)
    1.88
    Exhaust Valves Included
    Yes
    Guideplates Included
    Yes
    Heat Crossover
    No
    Intake Port Location
    Standard
    Intake Port Shape
    Oval
    Intake Runner Volume (cc)
    275
    Intake Valve Angle
    24
    Intake Valve Diameter (in.)
    2.19
    Intake Valves Included
    Yes
    Lock Style
    10 degree
    Locks Included
    Yes
    Machined for O-Ring
    No
    Maximum Valve Lift (in.)
    0.66
    Number of Springs Per Valve
    Single
    Oiling Style
    Through pushrod
    Outside Diameter of Outer Spring (in.)
    1.55
    Quantity
    Sold individually
    Retainer Material
    Steel
    Retainers Included
    Yes
    Rocker Arm Nuts Included
    No
    Rocker Arm Studs Included
    No
    Rocker Arms Included
    No
    Steam Holes Drilled
    No
    Valve Cover Mounting Style
    Perimeter bolt
    Valve Guide Material
    Bronze
    Valve Guides Included
    Yes
    Valve Seat Machine Style
    4-angle intake/3-angle exhaust
    Valve Seat Material
    Ductile iron
    Valve Seats Machined
    Yes
    Valve Springs Included
    Yes
    Valve Stem Seal Style
    Positive stop
    Valve Stem Seals Included
    Yes
    Manufacturer's Part Number:
    19900171

    The Dart Big Block Chevy Pro 1 Aluminum Heads were inspired by Dart's championship-winning Pro Stock designs and available with 310, 325, 345, or 355cc oval or rectangular port intake runners, big block Pro 1 aluminum cylinder heads deliver out-of-the-box airflow that smokes the competition! Specifically engineered for street performance, bracket racing and Super Eliminator engines yet can be used with off-the-shelf pistons, valve train components and intake manifolds!

    Race-Proven Pro 1 Features:
  • Advanced manufacturing techniques provide precision castings
  • Combustion Chamber Size: 121cc
  • Extra-long intake valves & rolled valve angles
  • Magnesium bronze valve guides reduce stem wear & extend cylinder head life
  • Multi-angle intake seats & radiused exhaust seats dramatically increase airflow
  • Hardened exhaust seats compatible with unleaded gasoline
  • Exhaust ports raised .300"
  • Requires 1" longer head bolts next to exh ports. Use: ARP 070-135-3605
  • Spark plug holes machined for gasketed 3/4" reach plugs
  • Sold individually

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