TOYOTA 2AZ-FE 1AZ-FE DOHC, ACL Race Series Main Bearings (5M8412H)
Enhance your engine's performance with the TOYOTA 2AZ-FE 1AZ-FE DOHC, ACL Race Series Main Bearings (5M8412H). Specifically engineered for high RPM conditions, these bearings are a top choice for automotive enthusiasts and professionals alike. Designed to meet the demands of high-performance engines, they ensure durability and reliability under extreme conditions.
High Strength Overlay Plate: Features a reduced thickness for improved performance.
Hardened Steel Backs: All Conrod Bearings come with hardened steel backs for added strength.
Increased Crush: Eliminates flash plating for a more secure fit.
3/4 Grooving: Main Bearings are designed with 3/4 grooving to provide optimum oil supply.
Consistent Wall Tolerances: Ensures tight and reliable performance.
Oversize Chamfers: Available where applicable for enhanced fitment.
Explore the full range of ACL Race Series Engine Bearings for superior engine performance. Visit ACL Race Series Engine Bearings for more information.
More Information
Product Name
TOYOTA 2AZ-FE 1AZ-FE DOHC, ACL Race Series Main Bearings (5M8412H)
Brands
ACL
Engine
1AZ-FE / 2AZ-FE / 2AZ-FXE
Make
Toyota
Delivery & Freight
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Disclaimer:
Product images are for description purposes only. Actual product may vary.
What information do I need to match these pistons to my engine?
You need the engine code, bore size, stroke, rod length, pin diameter and target compression ratio. These determine the correct piston compression height and crown design.
How should ring gaps be set for these pistons?
Ring gaps must be set by your engine builder based on fuel type, boost level and the intended rpm range. Forced-induction engines usually require larger gaps.
Are forged pistons suitable for street engines?
Yes. Forged pistons handle detonation and high cylinder pressure better than cast units. Your builder should set the piston-to-bore clearance to suit your application.
What are the key features of the ACL Race Series Main Bearings for the 1AZ-FE and 2AZ-FE engines?
The ACL Race Series Main Bearings (5M8412H) feature a high strength overlay plate with reduced thickness for improved performance, hardened steel backs for added strength, and increased crush to eliminate flash plating for a secure fit. They also include 3/4 grooving for optimum oil supply and consistent wall tolerances for reliable performance.
Do I need to perform any machining before installing these main bearings?
Yes, it is advisable to check the main journal sizes and ensure proper clearances are set according to your engine's specifications. Depending on the condition of your engine block, line boring may be required to achieve the correct fit.
What type of oil should I use with these bearings?
Using a high-quality engine oil that meets or exceeds the specifications for your engine is crucial. Ensure that the oil has adequate viscosity for high RPM conditions, as this will help maintain proper lubrication and performance of the ACL Race Series Main Bearings.
Are these bearings suitable for street use?
While the ACL Race Series Main Bearings are designed for high-performance applications and can handle extreme conditions, they may not be ideal for standard street use due to their focus on high RPM durability. Consider your engine's intended use and performance goals before installation.
What is the recommended installation procedure for these main bearings?
Ensure that the bearing surfaces and journals are clean and free of debris before installation. Apply a thin layer of engine oil to the bearings and journals, then install the bearings into the main caps and block. Torque the main caps to the manufacturer's specifications, ensuring even pressure across all caps.
