What is the main function of crankshaft main bearings?

Crankshaft main bearings support the crankshaft within the engine block. They create a precise gap that allows the crankshaft to rotate smoothly while maintaining an oil film to prevent metal-on-metal contact and reduce friction.

What Ford V8 engine displacements does this bearing set fit?

This ACL main bearing set is designed for Ford V8 engines with 255, 289, and 302 cubic inch displacements. It is also compatible with a broader range of Ford V8s from 1962 to 1998.

What should I check before installing these main bearings?

Before installation, it's important to verify the correct oil clearance specifications for your engine build. You should also inspect your crankshaft journals for any imperfections and ensure they are thoroughly cleaned.

Specifications

Brand: ACL
Part #: 5M590A-40

ACL Ford Prod. V8 255-289-302 1962-98 Engine Crankshaft Main Bearing Set

Name: ACL Ford Prod. V8 255-289-302 1962-98 Engine Crankshaft Main Bearing Set
Brand: ACL
SKU: acl-acl-ford-prod-v8-255-289-302-1962-98-engine-crankshaft-main-bearing-set-t14-630916
Price: 28.72 USD
Availability: BackOrder

$28.72

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Fits 1967-1968 Omega Omega. ACL main bearing set for Ford V8 255-289-302 engines, crucial for smooth crankshaft rotation.

Key Features

Fits 1967-1968 Omega Omega.
Designed for Ford V8 engines including 255, 289, and 302 displacements.
Crucial for maintaining proper crankshaft oil clearance and reducing friction.
Features a multi-layer bearing material for durability and wear resistance.
Direct fit replacement for worn or damaged main bearings.

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About this part

Product Details

When you're rebuilding or refreshing a Ford V8 engine, especially the 255, 289, or 302 cubic inch displacements common in the 1967-1968 Omega Omega, the crankshaft main bearings are absolutely critical. These ACL main bearings are designed to provide a precise clearance for your crankshaft, allowing it to spin freely while maintaining the oil film necessary to prevent metal-on-metal contact. Getting this clearance right is key to engine longevity and performance.

ACL has been making engine bearings for a long time, and they build these to handle the demands of these classic Ford V8s. They use a multi-layer bearing material that's well-built to resist wear and fatigue, ensuring consistent performance over time. When you install these, you're getting a solid option that fits right into your engine block, replacing worn-out bearings that might be causing noise or oil pressure issues.

Make sure you have the correct oil clearance specifications for your specific engine build before installing these bearings. It's always a good idea to check your crankshaft journals for any imperfections and ensure they are clean before fitting new bearings.