ATK HP24 Jeep 4.6L / 4.7L Street Stroker Base Engine 205HP for 91-98 Jeeps

Item #31985 Brand:ATK Engines

Made in the USA
ATK HP24 Jeep 4.6L / 4.7L Street Stroker Base Engine 205HP for 91-98 Jeeps
HP24 ATK AMC 4.7 Stroker 91-98 Engine Long Block
* ** THIS ITEM IS TEMPORARILY OUT OF STOCK *** FREE SHIPPING on ATK Engines. This item ships directly from the manufacturer and is not available for store pickup. Some engines are made-to-order or can be backordered. Delivery can be delayed up to 5 to 6 weeks but typically ship within 2 weeks.

*Truck Freight Delivery Notice - Driver will only deliver this item to your curb. It is your responsibility to transport the item from curb to your garage.

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ATK HP24 Jeep 4.6L / 4.7L Street Stroker Base Engine, or Stage 1 Engine, is designed for those that may have their own component parts already and who also are interested in completing out the build themselves. A Chrysler base engine typically consists of the following: Short Block, Camshaft, Timing set, Cylinder heads, Valve covers, Timing cover, oil pan, oil pump & pick up tube.

Engine Specifications:
  • HP: 205
  • TQ: 280
  • Block: OE block #569, 341 or 449
  • Bore/Stroke: 3.915” or 3.935” x 3.895”
  • Displacement: 4.6L / 4.7L
  • Crankshaft: Scat nodular iron with .850” pilot hole
  • Rods: OE
  • Pistons: Hypereutectic 9.3:1 compression
  • Rings: Moly
  • Camshaft: Hyd. flat tappet
  • Cam Specs: 206/212 @50 .462in/.478ex 113LSA
  • Timing Chain: Single roller
  • Cylinder Heads: OE cast iron #630 1996-1999
  • Rocker Arms: OE stamped steel
  • Oil Pump: Melling standard volume
  • This engine will reuse your stock parts from your tired old 4.0l while providing more power and reliability. Your engine may not necessarily come with all components listed, but they are listed as our recommendations of parts to run for optimal performance.


    1991-1997 All Models Vin "S"
    1998 Cherokee
    1998 Wrangler
    NOT for 1998 Grand Cherokee Vin "S"

    ATK specializes in muscle. With the highest quality internal parts and Dyno Proven combinations of every engine built, ATK is able to add the most bang for your buck and back it up with an industry leading warranty.

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    Engine Paint


    (1) ATK HP24 Jeep 4.6L / 4.7L Street Stroker Base Engine 205HP for 91-98 Jeeps


    Engine Information:

    • Oil: Conventional / Non Synthetic 10W30 with Comp Cam zinc additive #159 for first 3000 miles
    • Oil Filter: Wix or K&N
    • Timing: Factory settings
    • Spark Plug Gap: .035”
    • Firing Order: 153624
    • Octane: 91+
    • Stall Converter: Stock
    • Exhaust: Headers/Performance exhaust
    • Weight: 397 lbs.

    Notes: This engine will work with all stock components, but ATK recommends a cold air intake, headers, exhaust and chip for maximum power potential.

    Disclaimer: The parts listed are ATK’s recommendations of parts to be used to obtain our power figures listed. Power figures can vary based on parts used by the end user. It is the customer’s responsibility to verify components will work in their application. Some modifications to the vehicle may be required using these and or other aftermarket parts. . ATK reserves the right to substitute parts used in engines if necessary.


    Recommended Components: • Balancer: OE
    • Flexplate/Flywheel: OE
    • Intake Manifold: OE
    • Throttle Body: OE
    • Fuel Pump: OE
    • Ignition: OE ignition system
    • Spark Plugs: Autolite #AP985
    • Spark Plug Wires: OE
    • Water Pump: OE per application

    Shipping Instructions and Core Information

    Shipping is free and lift gate will be provided.

    There is no core charge for this engine. You will not be required to send a core back to the manufacturer.

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