19705199 Pro 1 20° Big Block Chevy Cylinder Head 440cc [1.650 in]
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DARTPART NUMBER: 301-19705199

19705199 Pro 1 20° Big Block Chevy Cylinder Head 440cc [1.650 in]

$3,13642
ShippingShips on 09/16/2026
Lowest PriceLowest Price Guarantee

Rectangle Port 440 cc

Pro 1 20° Big Block Chevy Cylinder Head

  • 1.650 in.
  • 440cc Intake Port Volume
  • Triple Springs for Solid Roller Cam
  • Cast Aluminum Alloy Construction
  • Natural Finish
  • Sold Individually


  • Dart 19705199 Pro 1 20° Big Block Chevy Cylinder Head Features:

    • Max Lift: .900 in.
    • Valve Angle: 20°
    • Intake Valve: 2.400 in.
    • Exhaust Valve: 1.800 in.
    • CNC Chamber Volume: 97cc
    • Intake Port Shape: Rectangle
    • Exhaust Port Location: .500 in. Raised

    Dart 19705199 Pro 1 20° Big Block Chevy Cylinder Head Notes:

    • Requires use of shaft-mounted rockers
    • Requires special pistons
    • Must use Copper Seats with Titanium Valves

    Emissions Note:

    This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

    CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

      Oval or Rectangular Port Pro 1 Big Block Chevy Cylinder Heads

      Dart's Big Block Chevy Pro 1 Aluminum Heads are inspired by championship-winning Pro Stock designs. Pro 1 Aluminum Heads are available with oval or rectangular port intake runners. These 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 compatible with off-the-shelf pistons, valve train components, and intake manifold.


      Show More

      The Dart Big Block Chevy Pro 1 Aluminum Cylinder Heads are engineered for serious big block builders who demand maximum airflow, horsepower potential, and race-proven durability. Designed specifically for high-performance BBC applications, these aluminum cylinder heads deliver the combustion efficiency and port design needed to unlock substantial power gains. Whether you’re building a street-driven 496 stroker or a dedicated drag racing engine, Dart Big Block Chevy Pro 1 Aluminum Cylinder Heads provide the foundation for strong torque capacity and consistent high-RPM performance.

      Upgrading cylinder heads is one of the most effective ways to increase horsepower in a big block Chevy engine. With optimized intake and exhaust runner geometry, the Pro 1 series is built to enhance airflow and support larger displacement combinations that require superior breathing capability.

      Performance Benefits & Key Features

      Dart Big Block Chevy Pro 1 Aluminum Cylinder Heads are constructed from high-quality aluminum to improve heat dissipation and reduce overall engine weight compared to traditional iron heads. Enhanced cooling characteristics contribute to stable operating temperatures, especially in high-compression and forced induction setups.

      Performance enthusiasts typically evaluate cylinder heads based on intake runner volume, combustion chamber size, valve sizing, deck thickness, and overall airflow performance. The Pro 1 series is engineered with precision-machined ports and chambers designed to optimize volumetric efficiency, improving both horsepower and torque across the RPM band. The increased airflow capacity supports aggressive camshaft profiles and large cubic inch combinations without compromising durability.

      These heads are ideal for street performance builds, pro-touring cars, bracket racing vehicles, and high-output drag racing applications. Builders looking to support 600+ horsepower combinations often prioritize aluminum cylinder heads like the Pro 1 for their ability to handle elevated cylinder pressures while maintaining reliability.

      Fitment, Compatibility & Applications

      The Dart Big Block Chevy Pro 1 Aluminum Cylinder Heads are designed for Chevrolet big block compatibility, making them suitable for a wide range of GM platforms. Popular applications include classic Chevelle, Camaro, Nova, and C10 truck builds configured with BBC engines.

      These cylinder heads integrate seamlessly with compatible intake manifolds, valvetrain components, and rotating assemblies, allowing builders to tailor their engine combination to specific performance goals. Whether you’re assembling a naturally aspirated street monster or a boosted competition engine, proper fitment ensures optimal results.

      If you’re ready to elevate your big block build with proven airflow and race-inspired engineering, explore the Dart Big Block Chevy Pro 1 Aluminum Cylinder Heads at JEGS and build your engine with confidence and performance-driven precision.

    Part TypeCylinder Head
    Product LineDart Big Block Chevy Pro 1 Aluminum Cylinder Heads
    BrandDART
    Package Height7.75
    Package Width10.5
    Package Length23.9
    Weight49.18 PG
    Part CategoryPerformance Parts
    Part FitmentSemi Universal
    Package Qty1
    Package TypeEA
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