ACL Race Series High Performance Main Bearing Set
2003–2025 Dodge Ram 1500 / Chrysler 300 / Dodge Magnum / Jeep Grand Cherokee / Dodge Charger / Dodge Challenger / Dodge Durango / Ram 1500
5M2220H-.025
Overview:
The ACL Race Series High Performance Main Bearing Set is engineered specifically for Chrysler 5.7L and 6.1L Hemi V8 engines, covering a broad range of vehicles from 2003 through 2025. Designed for serious enthusiasts and professional engine builders, this bearing set provides exceptional durability and precision fitment with a .025mm (0.001") undersize specification. It is ideal for high-performance applications where enhanced reliability and resistance to wear under extreme conditions are critical.
This main bearing set supports engines in popular models such as the Dodge Ram 1500, Chrysler 300, Dodge Magnum, Jeep Grand Cherokee, Dodge Charger, Dodge Challenger, and Dodge Durango. Whether you are rebuilding a street performance engine or preparing a race-ready powerplant, ACL bearings deliver the quality and performance needed to maintain engine integrity and maximize power output.
Key Features:
ACL Race Series bearings incorporate advanced materials and manufacturing techniques to ensure superior performance and longevity. Key features include:
- Precision-engineered to .025mm (0.001") undersize for exact crankshaft fitment
- Constructed from high-grade tri-metal materials for enhanced wear resistance
- Optimized for high load capacity and thermal stability in demanding environments
- Designed to reduce friction and improve oil film retention for extended engine life
- Compatible with Chrysler 5.7L and 6.1L Hemi V8 engines from 2003 to 2025
- Manufactured to meet or exceed OEM specifications for reliable performance
- Ideal for both street and track applications requiring high durability
- Corrosion-resistant coating to protect against engine contaminants
Construction & Design:
ACL Race Series main bearings are crafted using a tri-metal construction that combines a steel backing with a copper-lead alloy and a thin overlay of babbitt material. This layered design provides a robust bearing surface capable of withstanding high loads and temperatures commonly encountered in performance engines. The precise undersize dimension ensures a tight, secure fit on the crankshaft journals, minimizing clearance and maximizing oil film strength.
Each bearing undergoes rigorous quality control and finishing processes to guarantee smooth surfaces and consistent thickness, which are vital for maintaining proper oil clearance and preventing premature wear. The durable coating applied to the bearing surface enhances corrosion resistance and reduces the risk of damage during installation.
Installation & Fitment:
The ACL Race Series Main Bearing Set is designed for direct replacement in compatible Chrysler 5.7L and 6.1L Hemi V8 engines. Installation requires standard engine rebuild procedures, including careful measurement of crankshaft journal diameters and bearing clearances to ensure optimal fit. The .025mm undersize specification accommodates crankshaft grinding or wear, making these bearings suitable for engine rebuilds or performance upgrades.
Proper lubrication during assembly and adherence to torque specifications are essential to achieve maximum bearing life and engine reliability. This bearing set fits a wide range of vehicles, including Dodge Ram 1500 (2003–2025), Chrysler 300 (2005–2010), Dodge Magnum (2005–2008), Jeep Grand Cherokee (2005–2021), Dodge Charger (2006–2025), Dodge Challenger (2008–2025), and Dodge Durango (2021–2025).
What's Included:
- Complete set of main bearings sized at .025mm undersize
- Precision-matched bearing shells for all main journals
- Installation instructions and specifications guide
Ideal For:
This bearing set is ideal for automotive enthusiasts, professional engine builders, and racers who demand high reliability and performance from their Chrysler Hemi V8 engines. It is perfectly suited for engine rebuilds, performance upgrades, and motorsport applications where enhanced bearing durability and precise fitment are essential to withstand increased power and stress.
