Remanufactured Jeep AMC Eagle 4.2L 258 Cylinder Head

Remanufactured Jeep AMC Eagle 4.2L 258 Cylinder Head

Enhance the performance and reliability of your Jeep AMC Eagle or Wrangler with our premium rebuilt Cast Iron Cylinder Head.

This is a single remanufactured cast iron cylinder head for 4.2L OHV 258 Straight 6 engines. These use the heavy-duty cast iron construction and feature expert restoration to meet or exceed OEM specifications for optimal strength.

🛠️ In-House Machining Process

• Cleaning: Fully disassembled and thermally cleaned.
• Soda Blasted: Castings are blasted with Sodium Bicarbonate. Because baking soda is water-soluble, there is zero risk of abrasive media clogging oil passages.
• Pressure Testing: Tested to 60 PSI to ensure no cracks or porosity leaks.
• Surfacing: All heads are resurfaced on our Rottler S85A for a precision gasket-sealing surface.
• Valve Job: Multi-angle valve job performed; every port is Vacuum Tested to ensure valves are seated 100% airtight.

📊 Technical Specifications

• Engine Compatibility: 4.2L OHV 258 Straight 6
• Material: durable cast iron construction
• Condition: remanufactured to meet or exceed OEM standards
• Casting Number Requirement: customers must provide original casting number for accuracy
• Design: specifically engineered for 6-cylinder OHV engines
• Core Requirement: core return required

🚘 Fitment Applications

Fits:

• Jeep AMC Eagle: 1982-1988 (4.2L 258)
• Jeep Wrangler (YJ): 1987-1989 (4.2L 258)
• Jeep CJ-7 / CJ-8 Scrambler: 1982-1986 (4.2L 258)
• Jeep Wagoneer / Grand Wagoneer: 1982-1986 (4.2L 258)