Remanufactured Engines For Sale
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   1974 Jeep J20 L6, 4.2 L, 258 CID Rebuilt Engine - Product Page
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This Jeep 4.2 L, 258 CID engine is characterized by "Bolt on Rockers". This Jeep rebuilt engine block was originally manufactured by AMC in 1974. Our Jeep L6, 4.2 L, 258 CID Rebuilt Engine long block comes without the engine accessories and the tin parts. Remove the old engine accessories and tin parts such as exhaust manifold, oil pan and timing belt cover from the original Jeep block that you want to replace on your Jeep J20 car or truck. You may visit a certified Jeep mechanic or car repair technician to ensure a smooth installation. If you need a high performance Jeep 4.2 L motor, contact us for available Jeep J20 engine performance options.
Please call 866-267-5522 to buy this engine
Product Name Engine Block
Applications 1974 Jeep J20
Performances High performance options available
Catalog No. HPAMC-258LB
Warranty 100,000 Mile / 7-Year
Engine Size 4.2 L, 258 CID
Engine Type L6
Fuel Type Gasoline
Fuel Delivery Carburetor
VIN Code "" (5th digit)
Aspiration Non Turbo
Head Casting 3213809
Block Casting 2380, 3867, 8618
Crank Casting 4723
Shipping $175 (48 US States)
Core Deposit $300.00*
Discount/Sale Price $1,402.00*
* Notes: Due to constant price fluctuations of OEM parts and engine cores, engine prices may vary in store.
Remarks Bolt on Rockers
Engine Information For more information, visit our Frequently Asked Questions page

1974 Jeep J20 L6, 4.2 L, 258 CID Rebuilt Engine - Product Page
Free Racing Engine Oil Buy five quarts of Joe Gibbs high performance engine oil! Power your Engine!
This Jeep 4.2 L engine is characterized by "Bolt on Rockers". This Jeep motor has a capable and sizable 4.2 L engine (258 CID) and various application possibilities and lots of horsepower and torque to deliver. It is one of the most popular Jeep 4.2 L engine configurations and context to use and a L6 to boot. It can sport a Gasoline Carburetor for power and performance on demand in a variety of vehicles. Compatible with VIN Code and with Non Turbo aspiration, some of the technical specifications can typically be found in the original Jeep user manual.