Item # 22581 BRAND: ATK Engines

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

ATK HP25 Jeep 4.7 Stroker Engine 205HP
ATK HP25 Jeep 4.7 Stroker Engine 205HP
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ATK HP25 Jeep 4.7 Stroker Engine 205HP

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

Product Overview:

Description

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

Warranty

Click Here for Warranty Information

Specifications

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

Shipping is free and lift gate will be provided.

In the Box

Contents

ATK Jeep 4.7 Stroker 205 HP 1987-1990 Base Engines

Guides & Accessories

Reviews

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Questions & Answers

Can I use my Weber carb and stock manifolds on this?

Asked by: yojohn
For questions on the manifold and carbs that can be used with this motor please reach out to ATK directly since they are the manufacturer of this motor. Below is a link https://www.high-performance-engines.com/contact-us-s/1786.htm
Answered by: ZachC
Date published: 2022-04-25

These engines go from 87’ to 90’, and 99’ to 06’, so I take it they’re not compatible with a 93’? I have a 93’ Cherokee Sport and would be interested, if it would be direct replacement.

Asked by: bob27
We would have to advise you to speak directly with the manufacturer on this. They (ATK High Performance) can be reached by calling: 866-721-2315. We apologize for the confusion and inconvenience.
Answered by: Kelly H
Date published: 2022-04-22

Will this work in an 89 YJ Wrangler? Currently has a 4cyl. I imagine the parts from 4cyl won’t transfer over

Asked by: Chris
We apologize for the confusion and inconvenience. We would have to advise you to speak directly to the manufacturer as these items drop ship. They can be reached by calling 866-721-2315.
Answered by: Kelly H
Date published: 2021-11-04

Will this work in a 74 Jeep CJ5? 

Asked by: mike819
We apologize for the confusion and inconvenience. We would have to advise you to speak directly to the manufacturer as these items drop ship. They can be reached by calling 866-721-2315.
Answered by: Kelly H
Date published: 2021-09-27

Does this come with intake and injectors?

Asked by: Gene
No. the intake manifold and the fuel injectors are not included.
Answered by: vince
Date published: 2021-06-09
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ATK Jeep 4.7 Stroker Engine 205HP 1987-1990 Base HP25
$3,143.00
In Stock