What does 'standard size' mean for these main bearings?

Standard size bearings are meant to be used with a crankshaft that is within the manufacturer's original factory specifications. If your crankshaft journals have been machined undersize due to wear or repair, you would need to use an undersize bearing set.

What is the tri-metal overlay on these bearings?

The tri-metal overlay is a specialized bearing material composed of three different layers. This construction provides a strong, durable surface that can withstand high loads and temperatures, while also offering good embeddability for small contaminants.

Do these bearings come with installation hardware?

This listing is for the main bearing set only. Installation hardware, such as main bearing bolts or seals, is typically sold separately. Always refer to the manufacturer's instructions for a complete list of required components.

Specifications

Brand: ACL
Part #: 5M5647H-STD
UPC: 9315726275665

ACL Ford 4.6L V8 DOHC Standard Size High Performance Main Bearing Set

Name: ACL Ford 4.6L V8 DOHC Standard Size High Performance Main Bearing Set
Brand: ACL
SKU: acl-acl-ford-4-6l-v8-dohc-standard-size-high-performance-main-bearing-set-t14-142677
Price: 175.54 USD
Availability: BackOrder

$175.54

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Fits 1999-2002 INFINITI G20. ACL high performance main bearings for your 4.6L V8 DOHC engine. Standard size.

Key Features

Fits 1999-2002 INFINITI G20.
High performance main bearing set for 4.6L V8 DOHC engines.
Standard size for use with factory or freshly machined crankshaft journals.
Features a tri-metal overlay for improved strength and durability.
Designed to handle increased stress and load in performance applications.
Helps maintain proper oil clearance and lubrication under demanding conditions.

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About this part

Product Details

When you're rebuilding or upgrading your 4.6L V8 DOHC engine, the main bearings are critical for keeping the crankshaft spinning smoothly. These high-performance main bearings from ACL are built to handle more stress than stock components, making them a solid choice for performance builds or engines that see hard use. They are a standard size, meaning they're designed to fit a crankshaft that hasn't been machined undersize.

ACL uses a specialized tri-metal overlay on these bearings. This material is known for its strength and ability to embed small debris particles, which helps prevent damage to the crankshaft journals. The design also incorporates features to improve oil flow, ensuring that the bearings stay lubricated even under demanding conditions. These are well-built components designed to be a direct replacement for your original bearings, assuming your crankshaft journals are within factory specifications.

If you're working on a performance engine or a rebuild where reliability is key, these ACL main bearings offer an improved level of durability. Make sure to follow the manufacturer's installation instructions carefully, including proper cleaning of all engine components and using the correct torque specifications.