ATK Jeep 4.7 Stroker Engine 205HP 1987-1990 Base HP25

Item #22581 Brand:ATK Engines

Made in the USA
ATK Jeep 4.7 Stroker Engine 205HP 1987-1990 Base HP25
ATK HP25 Jeep 4.7 Stroker Engine 205HP
* ** 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.
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Boost the power of your old automobile with this ATK Jeep 4.7 Stroker Engine. Its 205 horsepower increases the potential of the vehicle, while the cast iron cylinder head ensures better reliability. This crate engine works by using the stock parts of your exhausted 4.0l jeep engine, and is suitable for all 1987-1990 models.

Engine Specifications:

  • Horsepower: 205
  • Torque: 280 lb/ft
  • Block: Seasoned OE Block Cast #665 or 535
  • Bore/Stroke: 3.915" or 3.935" x 3.895"
  • Year Range: 1987-1990
  • Displacement: 4.6L / 4.7L
  • Crankshaft: Scat Nodular Iron 3.895" Stroke / 2.125 Snout .850 Pilot Hole
  • Connecting Rods: OE
  • Pistons: Hypereutectic Dished
  • Piston Rings: Moly Rings
  • Compression Ratio: 9.3:1 Compression
  • Camshaft: Hydraulic Flat Tappet
  • Camshaft Specifications: 206/212 @050 .462in/.478ex 113LSA
  • Camshaft Bearings: Installed & Clocked to OEM Position
  • Cylinder Heads: 1987-1990 Cast #686
  • Freeze Plugs: Brass Installed & Sealed
  • Rocker Arms: Stamped Steel
  • Oil Galley Plugs: Installed & Sealed
  • Oil Pan: OE 6qt.
  • Weight:397

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.

Don't forget the engine paint!
Engine Paint


ATK Jeep 4.7 Stroker 205 HP 1987-1990 Base Engines


Engine Information:

•Oil: 10W30
•Oil Filter: Wix or K&N Recommended Per Your Application
•Fuel Delivery: OE EFI System
•Intake Manifold: Stock Manifold
•Fuel Injectors: Stock Injectors
•Spark Plugs: Champion #RC9YC4
•Spark Plug Gap: .035"
•Harmonic Balancer/Damper: Stock Factory Balancer Internally Balanced
•Flex Plate / Flywheel: Stock
•Timing: Set To Factory Specifications
•Throttle Body: Stock
•Water Pump: Stock
•Firing Order: 1 5 3 6 2 4
•Air Intake: Cold Air Intake Suggested
•Exhuast: 1 5/8 Headers
•Fuel Pump: Stock
•Fuel: 91+ Octane
•Ignition: Stock
•Automatic Transmission Stall Converter: Stock

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 for their application. Some modifications to the vehicle may be required using these and or other aftermarket parts.

Shipping Instructions

Shipping is free and lift gate will be provided.

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