ACL Main Bearing Set
2017–2020 Toyota 86 / 2022–2024 Subaru BRZ / 2022–2024 Toyota GR86 FA20 Engine
5M8312HX-STD
Overview:
The ACL Main Bearing Set is engineered specifically for the FA20 engine found in the Toyota 86 (2017–2020), Subaru BRZ (2022–2024), and Toyota GR86 (2022–2024). Designed to deliver high performance and enhanced durability, this bearing set features extra oil clearance to improve lubrication and reduce friction under demanding conditions. Ideal for enthusiasts and professional builders seeking reliable engine protection during high RPM operation or modified power levels, these bearings help maintain engine integrity and longevity.
Whether you are rebuilding your engine or upgrading for motorsport applications, the ACL Main Bearing Set ensures precise fitment and consistent performance, making it a trusted choice for FA20 engine maintenance and enhancement.
Key Features:
This high-performance main bearing set offers several key benefits that support engine reliability and efficiency:
- Extra oil clearance design for improved lubrication and reduced bearing wear
- Standard size bearings engineered to OEM specifications for perfect fitment
- Manufactured from premium materials to withstand high loads and temperatures
- Optimized surface finish to minimize friction and enhance durability
- Compatible with stock and mildly modified FA20 engines
- Precision machining ensures consistent bearing geometry and alignment
- Ideal for both street and track applications requiring dependable engine support
- Designed to reduce the risk of bearing failure under increased stress conditions
Construction & Design:
ACL main bearings are crafted using advanced metallurgy and manufacturing processes to meet the rigorous demands of high-performance engines. The bearing shells are constructed from a robust steel backing with a tri-metal overlay that includes a layer of high-quality babbitt material. This combination provides excellent conformability and embedability, allowing the bearings to accommodate minor surface imperfections and contaminants while maintaining a stable oil film.
The extra oil clearance incorporated into this bearing set enhances oil flow around the crankshaft journals, reducing heat buildup and friction. This design consideration is especially beneficial for engines operating at elevated RPMs or under increased load, where lubrication is critical to prevent premature wear and failure.
Installation & Fitment:
The ACL Main Bearing Set is designed for direct replacement in the FA20 engines of the specified Toyota 86, Subaru BRZ, and Toyota GR86 model years. Installation requires standard engine teardown procedures, including crankshaft removal and inspection. It is recommended to measure journal diameters and bearing clearances with precision tools to ensure proper oil clearance and fitment.
No modifications are necessary when installing this bearing set, as it maintains OEM dimensions with the added benefit of extra oil clearance. Proper installation torque and lubrication during assembly are essential to maximize bearing life and engine performance.
What's Included:
- Complete set of standard size main bearings with extra oil clearance for FA20 engine
- Installation instructions and specifications (where applicable)
Ideal For:
This bearing set is ideal for automotive enthusiasts, engine builders, and professional mechanics working on the FA20 engine in the Toyota 86 (2017–2020), Subaru BRZ (2022–2024), and Toyota GR86 (2022–2024). It suits those performing engine rebuilds, upgrades, or maintenance who require enhanced lubrication and durability for street, track, or light motorsport use.
