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Chevrolet Performance 12568778

502 HO Engine 461 HP @ 5100 RPM

Chevrolet Performance 12568778

809-12568778

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Estimated ship date 05/30/17 if Ordered Today
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Chevrolet Performance 12568778 502 HO Engine 461 HP @ 5100 RPM $6,908.68
502 HO Engine
  • 461 HP @ 5100 RPM
  • 558 ft/lbs TQ @ 3400 RPM

  • Chevrolet Performance 12568778 Details

    502 HO Engine Kit

    INSTALLATION NOTES:
  • Requires addition of carburetor, fuel pump, starter, distributor and ignition system (not included)
  • 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
  • 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
  • Passenger side RH oil dipstick & tube
  • Distributor with melonized steel gear MUST be used with long-blocks and Partial engines with steel camshafts, or engine damage will occur
  • Designed for pre-1976 street vehicles or any off-road vehicle
  • Not intended for marine applications

  • Specifications:

    Flywheel Included
    No
    Engine Balance
    External
    Wiring Harness Included
    No
    Air Cleaner Included
    No
    Assembled
    Yes
    Carburetor Included
    No
    Computer Included
    No
    Crate Engine Cylinder Head Material
    Cast iron
    Cylinder Heads Included
    Yes
    Distributor Included
    No
    Engine Assembly Style
    Long block
    Flexplate Included
    Yes
    Harmonic Balancer Included
    Yes
    Intake Manifold Included
    Yes
    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
    Yes
    Rear Main Seal Style
    1-piece
    Manufacturer's Part Number:
    12568778

    Affordable Big-Block Performance
    with Huge Torque and 461 HP!

    Free Shipping!

    What will you do with 461 horsepower and 558 lb.-ft. of torque from Chevrolet Performance's value-driven 502 HO crate engine? Whether you use it on the street, strip or even pulling a trailer with your workhorse truck, its performance range offers unlimited possibilities. In fact, it makes nearly 500 lb.-ft. by only 1,750 rpm, meaning it has all the low-rpm grunt you can use! To support all that torque, this Big-Block starts with the latest-generation block casting with four-bolt main caps and built with all-forged rotating assembly for exceptional strength and durability. A hydraulic roller camshaft is used for excellent drivability and a broad performance range; and an 8.75:1 compression ratio is suitable for regular pump gas at all altitudes and engine loads. This crate engine assembly includes an aluminum, dual-plane intake manifold, a water pump, 14-inch flexplate, balancer and more. You simply add the carburetor, starter and ignition system.

    502 HO TECH SPECS:
  • Engine Type: Chevy Big-Block V-8
  • Displacement: 502ci
  • Bore x Stroke: 4.470'' x 4.000''
  • Block: Cast-iron with four-bolt main caps
  • Crankshaft: Forged steel
  • Connecting Rods: Forged steel, shot peened
  • Pistons: Forged aluminum
  • Camshaft Type: Hydraulic roller
  • Camshaft Lift: .510'' intake / .540'' exhaust
  • Camshaft Duration (@.050 in.): 211° intake / 230° exhaust
  • Cylinder Heads: Iron rectangular port, 118cc combustion chambers
  • Valve Size: 2.190'' intake / 1.880'' exhaust
  • Compression Ratio: 8.75:1
  • Rocker Arms: Stamped steel
  • Rocker Arm Ratio: 1.7:1
  • Water Pump: Cast-iron, long-style
  • Flexplate: 14'' diameter
  • Recommended Fuel: Regular pump (89 octane)
  • Ignition Timing: 32° Total at 4000 rpm
  • Maximum Recommended RPM: 5500
  • Balanced: External
  • GM Warranty

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