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Chevrolet Performance 12371204 - Chevrolet Performance ZZ502ci/502HP Base Engine Kit



Chevrolet Performance 12371204 - Chevrolet Performance ZZ502ci/502HP Base Engine Kit

Part Number: 809-12371204

ZZ502 Base Engine
  • 508 HP @ 5200 RPM
  • 580 ft/lbs Torque @ 3600 RPM
  • Partially Assembled
  • $7,096.99
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    Chevrolet Performance 12371204 - Chevrolet Performance ZZ502ci/502HP Base Engine Kit Details

    INSTALLATION NOTES:
  • Clutch linkage bosses are now drilled and tapped. When using cast-iron exhaust manifolds, lower head bolts may need to be replaced with bolts with shorter heads for clearance
  • The 502 engines now have a mechanical fuel pump boss!
  • Comes with an externally balanced 14'' automatic transmission flexplate. Use flywheel P/N 809-14096987 and 11" clutch assembly for manual transmission applications
  • Designed for pre-1976 street vehicles or any off-road vehicle
  • Not intended for marine applications
  • For long blocks and partial engines with steel camshafts, a distributor with a melonized steel gear must be used or engine damage will occur. Distributor #809-93440806 is recommended.

  • Specifications:

    Flywheel Included
    No
    Engine Balance
    External
    Wiring Harness Included
    No
    Air Cleaner Included
    No
    Assembled
    No
    Carburetor Included
    No
    Computer Included
    No
    Crate Engine Cylinder Head Material
    Aluminum
    Cylinder Heads Included
    Yes
    Distributor Included
    No
    Engine Assembly Style
    Long block
    Flexplate Included
    Yes
    Harmonic Balancer Included
    Yes
    Intake Manifold Included
    No
    Oil Pan Included
    Yes
    Quantity
    Sold individually
    Spark Plug Wires Included
    No
    Spark Plugs Included
    No
    Throttle Body Included
    No
    Timing Cover Included
    Yes
    Valve Covers Included
    Yes
    Water Pump Included
    No
    Rear Main Seal Style
    1-piece
    Manufacturer's Part Number:
    12371204

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    Chevrolet Performance Parts offers the entire ZZ502 engine as a kit, because nothing is quite as satisfying as building your own high-performance big block. Kit includes short block, aluminum oval-port heads, forged steel crank and rods and forged aluminum pistons. It also includes a hydraulic roller cam, valve train and valve covers. Every part is engineered to work together to deliver 502 horses and 567 pound-feet of torque!

    Specifications:
  • Bore x Stroke: 4.47 x 4.00
  • Block: Cast iron with 4-bolt main caps
  • Crankshaft: Forged steel
  • Connecting Rods: Forged steel
  • Pistons: Forged aluminum
  • Camshaft: Hydraulic roller
  • Camshaft Lift: 5.27 Intake/.544 Exhaust
  • Camshaft Duration @ .050": 224° Intake/234° Exhaust
  • Cylinder Heads: Aluminum oval port, 110cc chambers
  • Valve Size: 2.25 Intake/1.88 Exhaust
  • Compression Ratio: 9.6 to 1
  • Rocker Arms: Stamped Steel
  • Rocker Arm Ratio: 1.7 to 1
  • Recommended Fuel: 92 Octane
  • Ignition Timing: Base 8° BTDC, 30° total
  • Maximum Recommended RPM: 5800
  • Balance: External

    GM Warranty

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