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Chevrolet Performance 12499117 - Chevrolet Performance Ram Jet 502 502ci/502HP Engine



Chevrolet Performance 12499117 - Chevrolet Performance Ram Jet 502 502ci/502HP Engine

Part Number: 809-12499117

Ram Jet 502 MEFI Harness Upgrade Kit
  • Converts 502 Ram Jet From MEFI 3 To MEFI 4 System
  • $761.78
    Ships 08/29/16
    if Ordered Today
    FREE Shipping

    Chevrolet Performance 12499117 - Chevrolet Performance Ram Jet 502 502ci/502HP Engine Details

    Ram Jet 502 MEFI Harness Upgrade Kit

    The Ram Jet 502 MEFI harness upgrade kit is used to convert a Ram Jet 502 from a MEFI 3 to the newer MEFI 4 design. This offers improved idle and performance through a closed loop system. Kit includes a module, a wire harness, an oxygen sensor, an intake temperature air sensor, and an oxygen sensor fitting.

    Specifications:

    Quantity
    Sold as a kit
    Manufacturer's Part Number:
    12499117

    Outrageous style and fuel-injected drivability - all with Big-Block power!

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    The Chevrolet Performance 502 Ram Jet Engine is unlike any other big block you've experienced. Chevrolet engineers designed the unique large plenum Ram Jet intake that produces a broad torque curve. The Ram Jet 502 blends the legendary torque and performance of the Big-Block with a modern port fuel injection system and tunnel ram-style intake manifold. It's a combination that offers awesome performance in a visually stunning presentation!

    The unique Ram Jet fuel injection system stands 11-inches tall at its highest point and consists of a two-piece manifold/plenum assembly, eight injectors, a throttle body, and an updated MEFI 4 controller. Setup instructions are included, making it a simple ''plug-and-play'' installation.

    Supporting the unique induction system is a robust bottom end with an all-forged rotating assembly and a smooth hydraulic roller camshaft. The heads are high-flow aluminum oval-port parts from Chevrolet Performance.

    Ram Jet 502 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: .527'' intake / .544'' exhaust
  • Camshaft Duration (@.050 in.): 224° intake / 234° exhaust
  • Cylinder Heads: Aluminum oval port, 110cc combustion chambers
  • Valve Size: 2.250'' intake / 1.880'' exhaust, stainless steel
  • Compression Ratio: 9.6:1
  • Rocker Arms: Stamped steel
  • Rocker Arm Ratio: 1.7:1
  • Distributor: HEI type
  • Throttle Body: Included
  • Water Pump: Aluminum, short-style
  • Spark Plugs and Wires: Included
  • Flexplate: 14'' diameter
  • Recommended Fuel: Premium pump (92 octane)
  • Ignition Timing: 35° Total @ 4000 rpm
  • Maximum Recommended RPM: 5800
  • Balanced: External
  • 11" Tall 2-piece Manifold Assembly
  • Includes: MEFI 4 Controller & Wire Harness

    GM Warranty

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