MITSUBISHI 4G64/63 4G63-T 4G64, ACL Race Series Conrod Bearings (4B1185H)
Enhance your engine's performance with the MITSUBISHI 4G64/63 4G63-T 4G64, ACL Race Series Conrod Bearings (4B1185H). Specifically engineered to endure higher RPM conditions, these bearings are a perfect fit for your high-performance vehicle. Ideal for 4, 6, and 8 cylinder applications, they offer superior durability and reliability.
High strength overlay plate with reduced thickness for enhanced performance
Hardened steel backs on all Conrod Bearings for increased durability
Increased crush and elimination of flash plating for better fitment
3/4 grooving on Main Bearings ensures optimum oil supply
Tight, consistent wall tolerances for precision
Oversize chamfers where applicable for improved installation
More Information
Product Name
MITSUBISHI 4G64/63 4G63-T 4G64, ACL Race Series Conrod Bearings (4B1185H)
Brands
ACL
Engine
4G63
Make
Mitsubishi
Delivery & Freight
We are an Australian-based company that ships items nationally and internationally, usually within 48 hours of receiving your order. High-value items shipped internationally are sent via DHL Express, while lower-value items are sent via Australia Post Express unless otherwise instructed.
You can calculate shipping rates inside the shopping cart. After adding all the products you would like, navigate to the cart and click the ESTIMATE SHIPPING & TAX link. .
If you only see the Click and Collect shipping option, it means that your address was not validated correctly.
If you have issues calculating freight, please get in touch. We are happy to help.
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 Conrod Bearings for the 4G63?
The ACL Race Series Conrod Bearings for the 4G63 feature a high strength overlay plate with reduced thickness for improved performance, hardened steel backs for increased durability, and tight wall tolerances for precision fitment. They also include 3/4 grooving on main bearings to ensure optimal oil supply.
Do I need to modify my engine for these conrod bearings?
While the ACL Race Series Conrod Bearings are designed for a precise fit, it's essential to check the clearances and ensure proper machining of the conrod and crankshaft to achieve optimal performance. Depending on your engine's condition, some honing may be required.
What RPM range are these bearings suitable for?
These bearings are engineered to withstand higher RPM conditions, making them suitable for high-performance applications. However, reliability at elevated RPMs will depend on proper installation, clearances, and overall engine tuning.
How do I ensure proper installation of these conrod bearings?
To ensure proper installation, clean all surfaces thoroughly, check for any burrs or damage, and confirm that the bearing clearances are within the manufacturer's specifications. It's also advisable to use assembly lubricant during installation to prevent dry starts.
Can these bearings be used in a street application?
While the ACL Race Series Conrod Bearings are designed for high-performance and race applications, they can be used in street applications if the engine is built for performance. However, ensure that the overall setup, including tuning and oiling system, is appropriate for daily use.
