CHRYSLER AC101C6 Egr Cylinder Head 3.7 Head. 983AC

( Manufacturer Part Number: AC101C6 ), ( Type: Cylinder Head ), ( Oe/oem Part Number: Casting 983ac ), ( Items Included: Drivers Side Cylinder Head ), ( Material: Aluminum ), ( Finish: Remanufactured ), ( Country Of Origin: United States )

Review CHRYSLER Remanufactured 3.7 Drivers Side No Egr Cylinder Head. Casting#

The **Chrysler AC101C6 3.7L EGR Cylinder Head** (part number **983AC**) is a high-performance, precision-engineered component designed specifically for the iconic 3.7L V6 engine found in select Chrysler, Dodge, and Jeep vehicles, including models like the Jeep Grand Cherokee, Chrysler 300, and Dodge Charger. This cylinder head is meticulously crafted to enhance airflow, improve combustion efficiency, and deliver superior power output while maintaining reliability and durability. Built from high-grade cast aluminum, the head features a robust design optimized for high-performance applications, ensuring optimal heat dissipation and structural integrity under demanding conditions. The EGR (Exhaust Gas Recirculation) port is strategically integrated to allow controlled recirculation of exhaust gases, reducing nitrous oxide emissions without compromising performance ideal for both street-driven and light-duty performance applications. The head is equipped with precise valve guides, durable valve seats, and high-quality intake and exhaust ports that promote efficient scavenging and improved cylinder filling, resulting in noticeable gains in horsepower and torque. Whether used in a stock engine build for enhanced reliability or as part of a tuned performance package, this cylinder head is engineered to meet the rigorous demands of modern driving while adhering to emissions standards. Its compatibility with aftermarket upgrades, such as high-flow headers, performance camshafts, and fuel injection systems, makes it a versatile choice for enthusiasts looking to push their 3.7L V6 to its limits. With its blend of performance-focused engineering and Chrysler s legacy of durability, this cylinder head is an essential upgrade for anyone seeking to elevate the performance of their vehicle s powerplant.

The Chrysler AC101C6 3.7L EGR cylinder head (also known as the 983AC) is a critical component for the 3.7L Magnum V8 engine, commonly found in vehicles like the Chrysler 300, Dodge Charger, and Jeep Grand Cherokee (2006 2010). Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of Buying a Chrysler AC101C6 3.7L EGR Cylinder Head**

1. **Direct OEM Replacement** The AC101C6 is an original factory part, meaning it is designed to fit perfectly without modifications. This ensures proper sealing, alignment, and functionality with the rest of the engine components.

2. **High-Quality Materials** Chrysler uses durable materials in its cylinder heads, including cast iron or aluminum (depending on the variant), which are designed to withstand the thermal and mechanical stresses of a high-performance engine.

3. **Warranty Coverage** If purchased new or from an authorized dealer, the part may come with a factory warranty, providing peace of mind against defects or premature failure.

4. **Compatibility with Aftermarket Upgrades** The 3.7L Magnum is a popular engine for tuning, and the AC101C6 head is compatible with aftermarket parts like intake manifolds, camshafts, and fuel systems, allowing for performance enhancements.

5. **Reliability for Stock Applications** For vehicles running stock or lightly modified engines, the AC101C6 is a reliable component that can last the life of the engine if properly maintained.

6. **Availability of Support Parts** Since this is a widely used engine, gaskets, bolts, seals, and other related components are readily available, making repairs and replacements easier.

7. **Proven Design** The 3.7L Magnum engine has been in production for over a decade, and the AC101C6 head has been refined over time to address common issues like warping or cracking in earlier models.

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### **Cons of Buying a Chrysler AC101C6 3.7L EGR Cylinder Head**

1. **High Cost** As an OEM part, the AC101C6 can be expensive, especially if purchased new or from an authorized dealer. Prices often range from $500 to $1,200 or more, depending on the source and whether it includes related components like gaskets or bolts.

2. **Potential for Counterfeit Parts** The aftermarket for Chrysler parts is saturated with counterfeit or low-quality replicas. Buying from untrusted sellers can result in parts that fail prematurely or do not fit correctly.

3. **Weight and Size** The cylinder head is heavy (around 30 40 lbs per head), making installation labor-intensive. This can increase labor costs if you re not experienced with engine work.

- **Warped heads** (common in high-mileage engines due to thermal stress).

- **Leaking valve cover gaskets or oil leaks** (often requiring additional parts).

- **EGR valve or intake manifold issues** (which may need replacement alongside the head).

- **Rod bearing or camshaft wear** (if the engine has significant mileage or poor maintenance history).

5. **Installation Complexity** Replacing a cylinder head requires specialized tools (like a head gasket compressor, torque wrench, and alignment tools) and mechanical skill. Improper installation can lead to leaks, poor sealing, or even engine damage.

6. **Limited Longevity in Aggressive Applications** While the AC101C6 is robust, pushing the engine to extreme power levels (e.g., forced induction or high RPMs) without supporting modifications (like upgraded cooling or fueling) can reduce its lifespan.

7. **Depreciation and Resale Value** If you re restoring a classic or high-mileage vehicle, the cost of the head may not be fully recovered in resale value, especially if the rest of the engine or vehicle is worn out.

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### **Conclusion**

The Chrysler AC101C6 3.7L EGR cylinder head is a high-quality, reliable component for the 3.7L Magnum engine when used in stock or lightly modified applications. Its OEM design ensures compatibility and durability, but its cost, installation challenges, and potential for counterfeit parts must be carefully considered. For enthusiasts looking to restore or maintain a 3.7L engine, this part is a solid choice provided the rest of the engine is in good condition and the installation is done correctly. However, if the engine has significant wear or the vehicle is being used for high-performance applications, additional modifications (like upgraded heads, cooling, or fueling) may be necessary to fully justify the investment.

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### **Recommendation**

1. **Verify the Engine s Condition** Before purchasing the AC101C6, ensure the rest of the engine (rods, bearings, camshaft, intake manifold, and EGR system) is in good shape. A full engine rebuild or inspection may be needed alongside the head replacement.

2. **Buy from a Reputable Source** Purchase the part from an authorized Chrysler dealer, a trusted aftermarket supplier (like RockAuto, Summit Racing, or Borla), or a mechanic you trust. Avoid unknown sellers to avoid counterfeit parts.

3. **Consider Aftermarket Alternatives** If budget is a concern, explore high-quality aftermarket cylinder heads (e.g., from companies like Edelbrock or JE) that are often cheaper than OEM parts while still offering good performance.

4. **Plan for Additional Components** Factor in the cost of gaskets, bolts, seals, and any related parts (like the EGR valve or intake manifold) that may need replacement during the process.

5. **Hire a Professional if Needed** If you re not experienced with engine work, consider having a mechanic perform the installation to ensure proper sealing, torque specifications, and alignment.

6. **Evaluate the Vehicle s Use Case** If the vehicle is primarily for daily driving or light towing, the AC101C6 is a worthwhile investment. If it s being modified for high performance, weigh the cost against potential returns (e.g., increased horsepower or resale value).

7. **Budget for Contingencies** Engine work is unpredictable, so set aside extra funds for unexpected issues (e.g., warped heads requiring machining, additional leaks, or bearing wear).

**Final Verdict:** The AC101C6 is a strong choice for OEM replacement, but it s not a "set-and-forget" part. Its value depends on the overall health of the engine and the skill level of the installer. For most enthusiasts, it s a worthwhile investment if the rest of the engine is sound and the installation is done correctly.

Details:

All heads are vacuum tested to ensure proper valve seating. All bolt holes are retreaded and repaired as needed. Guides are replaced as needed. Jeep Liberty KJ YEARS:2005 2006.

Jeep Grand Cherokee WK YEARS:2005 2006. Dodge Ram 1500 YEARS:2005 2006. Dodge Dakota YEARS:2005 2006. Specifications.

This is the small chamber no egr drivers side cylinder head.Head comes complete with valves and springs only. All heads are and guaranteed to be free from casting defects. Completely remanufactured cylinder head. FREE SHIPPING inside the USA.

All seats and surface are re-machined within.e. Make and model Years. NEW valves, springs, valve stem seals. FREE SHIPPING inside the continental USA only.

part #: ac101c6 price

• $295.00

specifications cylinderheapar:

• for makes: Chrysler
• mpn: Ac101c6
• type: Cylinder Head
• oe/oem part number: Casting 983ac
• items included: Drivers Side Cylinder Head
• material: Aluminum
• finish: Remanufactured
• country of origin: United States

seller cylinderheapar:

• rating: 100.0%
• # reviews: 12
• city: Oakland, California

general cylinderheapar:

• Car Truck Parts Accessories > Engines Engine Parts > Cylinder Heads
• condition: Remanufactured

payments cylinderheapar:

• wallet: Apple-pay
• other
• credit card: Diners-club

returns cylinderheapar:

• policy: No Returns

offer cylinderheapar:

• availability: In Stock
• started: April 8, 2026
• options: Ship-to-home
• sold: 0
• best offers: True
• quantity: 4

shipping cylinderheapar:

• type: Calculated
• service: FedEx Ground / FedEx Home Delivery
• cost: $0.00
• transit: 3-9 Days
• carrier: FedEx
• class: Standard

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