What is the main function of crankshaft main bearings?

Crankshaft main bearings support the crankshaft within the engine block. They allow the crankshaft to rotate smoothly while handling the immense forces generated during combustion. Proper function is key to preventing crankshaft wear and maintaining oil pressure.

What does the '5M590A-30' part number signify?

The '5M590A' typically indicates the specific bearing type and application for ACL products. The '-30' suffix often denotes a specific size or clearance, in this case, a 0.030 inch undersize bearing set, which is common for engine rebuilding when crankshaft journals have been machined.

Are these bearings suitable for a performance build?

Yes, ACL bearings are known for their durable overlay material, which helps reduce friction and wear. This makes them a solid choice for engines that will see higher RPMs or increased loads, common in performance applications.

Specifications

Brand: ACL
Part #: 5M590A-30

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-t14-630685
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 (1962-98). Ensures smooth crankshaft rotation.

Key Features

Fits 1967-1968 Omega Omega.
Designed for Ford V8 engines including 255, 289, and 302 cubic inch displacements.
Covers engine production years 1962-1998.
Features a specialized overlay material for reduced friction and wear.
Manufactured to precise tolerances for proper crankshaft clearance.
Helps maintain oil pressure and crankshaft alignment.

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About this part

Product Details

For your 1967 or 1968 Omega Omega with a Ford V8 engine, these ACL main bearings are a solid choice for rebuilding or replacing your crankshaft bearings. These bearings are designed to handle the demands of Ford's 255, 289, and 302 cubic inch V8 engines, covering a wide range of production years from 1962 through 1998. Proper main bearing function is critical for supporting the crankshaft and ensuring it spins freely and without excessive wear.

ACL uses a specialized overlay material that's built to last. This overlay helps to reduce friction and wear, which is essential for the longevity of your engine, especially in performance applications or daily drivers. They are manufactured to precise tolerances, meaning they'll fit right into your engine block and provide the correct clearance for your crankshaft. This attention to detail helps prevent oil pressure loss and ensures the crankshaft stays properly aligned.

When you're putting an engine back together, getting the right bearings makes a big difference. These ACL bearings are a well-built option that will help you achieve a smooth-running, reliable engine.