Description
Part#: ALL-11310
Manufacturer: AMC
Year Range: 94-98
Engine Size: 4.0L - 242ci - L6
Description: 94-98 AMC 4.0L - 242ci - L6 - 630 Cylinder Head
Enhance the performance of your 94-98 AMC vehicle with our 4.0L - 242ci - L6 - 630 Cylinder Head. Crafted by AMC, this cylinder head exceeds OEM specifications, ensuring superior quality and reliability. Perfect for the 94-98 year range, this cylinder head is meticulously to deliver optimal performance and durability.
Constructed to meet the demands of your engine, our cylinder head, part number ALL-11310, offers precise fitment and excellent functionality. Whether you're restoring a classic or upgrading your daily driver, this cylinder head provides the power and efficiency you need.
Looking for more options? Explore our Cylinder Heads collection to find the perfect match for your vehicle. If you have any questions or need assistance, our expert support team is here to help. Don't hesitate to reach out—we're dedicated to ensuring your satisfaction. Upgrade your engine with confidence and unleash its full potential with our 4.0L - 242ci - L6 - 630 Cylinder Head.
If you need support or have any inquiries, please reach out to our expert team via our contact form, call us at 866-766-9955, or email sales@alliedmotorparts.com. We are here to support you throughout. For learning opportunities about cylinder heads, check our blog section.
Learn more about Mopar Cylinder Heads.
This Cylinder Head has a core charge of $100.00 included in the cost. This charge is FULLY REFUNDED upon return. We will include a prepaid label for the return freight.
Compatible Vehicle
| MAKE | MODEL | YEAR | ENGINE |
|---|---|---|---|
| Jeep | Cherokee | 1995-1997 | 4.0L 242Cu. In. l6 GAS OHV |
| Jeep | Grand Cherokee | 1995-1997 | 4.0L 242Cu. In. l6 GAS OHV |
| Jeep | TJ | 1997 | 4.0L 242Cu. In. l6 GAS OHV |
| Jeep | Wrangler | 1995 | 4.0L 242Cu. In. l6 GAS OHV |
| Jeep | Wrangler | 1997 | 4.0L 242Cu. In. l6 GAS OHV |
Not sure this is your casting? Call 866-766-9955 with your casting number and your vehicle's year, make and engine, and we'll confirm it before you buy.
Process & Warranty
Cylinder Head Rebuilding Process
1. Initial Inspection: As a unit comes to our shop, we give it an initial inspection to determine whether there is any reason the head should not proceed to rebuilding. This quickly catches problems such as cracks, casting damage and other conditions that would halt the process for that casting.
2. Teardown: The cylinder head is fully disassembled, which reveals other areas of potential damage to the casting. The parts and the head are separated and go through different cleaning processes.
3. Cleaning: Cast iron heads are cleaned in a thermal cleaning system — baked at 600° to reduce grease and oil to ash, then put through a steel-shot machine for a brilliant finish. Aluminum heads are baked at a lower temperature or put through a high-pressure wash, then glass-beaded.
4. Head Inspection: After cleaning, heads are pressure tested or Magnafluxed to find any cracks. All bolt holes, valve guides, valve seats and other areas are inspected for broken bolts, broken taps, cracked guides and other impairments. Straightness and cam bore wear are also checked.
5. Machining: All heads have guides installed to meet OE conditions and are resurfaced to far exceed factory specifications for surface finish. A three-angle valve job achieves valve seat runout under .001". Valves are ground for a perfect seal between valve and seat.
6. Assembly: New OE-style valve guide seals are installed. Springs are tested for proper seat pressure. Valve seat sealing is vacuum-checked for an airtight fit. Lifters are bled and rebuilt for zero lash after startup. Cams are polished and clearances are checked twice to meet OE oil clearances.
7. Final Inspection: Every head is visually inspected — surface finish, lash, bolt holes and all other areas — to ensure a quality cylinder head.
Questions about our cylinder head services? Call 1-866-766-9955.
Warranty — 12 months from purchase
Match the head before installation. We will not warranty an incorrectly installed head. Call us immediately with any questions or concerns about your purchase.
First 3 months:
- Repair or replacement of the cylinder head.
- Gasket set supplied for reinstallation.
- Labor calculated from book time at $25.00 per hour, up to a maximum of 10 hours.
- Replacement of fluids and filters.
Remaining 9 months:
- Repair or replacement of the cylinder head.
- Gasket set supplied for reinstallation.
- Replacement of fluids and filters.
- No labor is covered.
Warranty is void if:
- The head was improperly installed.
- The head was overheated (heat tab melted or missing).
- The head received insufficient oiling.
- The cooling system operated improperly.
Warranty returns must be sent to Allied Motor Parts uncleaned and fully assembled — any disassembly voids the warranty — and must be accompanied by proof of purchase. There is no warranty on threaded bolt holes after installation.
This warranty is in lieu of any other warranty, expressed or implied, including any implied warranty of merchantability or fitness for a particular purpose.
Quality Assurance
Here’s why our cylinder heads stand out:
Thorough Inspection: Every head undergoes a complete teardown, cleaning, and detailed inspection for cracks and imperfections.
Advanced Cleaning: Thermal cleaning for cast iron and high-pressure washing for aluminum ensures a brilliant finish.
Precision Machining: CBN resurfacing, triple-angle valve cuts, and guide installations exceed OEM specifications.
Rigorous Testing: Vacuum tests, tension checks, and pressure tests guarantee performance and durability.
High-Quality Components: New seals, plugs, and rebuilt lifters ensure optimal functionality.
Final Assurance: Each head is inspected, stamped, and stored in a climate-controlled environment.
Wide Availability: Over 2,000 cylinder heads for all makes and models, ready for repair or exchange.
Used this to replace the original head in my 98 Jeep Cherokee @ 221xxx miles. Great to find an original 0630 casting and great price on shipping showed up in a week safe and packed well. Also really liked that it wasn’t mandatory to return core so I could refurbish it and have for a backup. Dropped in easy and just had to touch up mating surface for thermostat housing on front of head. Have gone more than 50 miles over the last few days and running great and not leaking so far. Sounds like it’s running smooth. Very happy Thank you Allied.
AMC Cylinder Head 4.0L - 242ci - L6 - 630, Year:94-98
I order a 0630 reman head on 1/8/24 and received 5 days later 1/13/24. Installed and returned my core a few days later, $100 refund by 1/26/24. I have about 2K miles on the head since install two months later with no problems. Shipping box was in great shape, for the weight, sent by fedex ground. Reman head had a few decent size chipped areas in the edge of the cast-iron, but did not develop any issues. Valves where ok condition, not a perfect vacuum on intake using a vacuum pump tester, but I installed as is. The whole head comes painted, except head gasket seal, I decided to remove paint from the intake/exhaust gasket seal, which added some time. All in all excellent product for the price and have made recommendations to other XJ owners to consider Allied for a reman head option.
Great clean cylinder head! Thankyou
I would like to thank everyone in Allied Motor Parts for making my whole purchase experience a great one!
I'll be honest I first had my doubts being a first time customer and all, but once you see past that uncertainty of what if and decide to order your needed parts, I can guarantee you that at least for me my item came very well and super tough packaging, and with the return label already attached to the box, but if that wasn't enough the quality of the items I received was excellent.
If I ever need anything else I will definitely definitely purchase from them again.
Thank you for your order.