What is the main purpose of crankshaft main bearings?

Crankshaft main bearings support the crankshaft within the engine block. They create a low-friction surface for the crankshaft to rotate on, ensuring smooth operation and preventing excessive wear on both the crank and the block.

What makes these 'Race Series' bearings different from standard bearings?

The Race Series bearings feature a specialized overlay material that offers improved wear resistance and can handle higher loads and temperatures compared to standard bearings. This design helps maintain proper oil clearance even under demanding conditions.

Do these bearings come with installation instructions?

While specific instructions are not included with this listing, it is crucial to follow the manufacturer's recommended installation procedures for your engine. This typically involves careful cleaning of all surfaces, proper oiling of the bearings and crankshaft, and adhering to torque specifications.

ACL Ford Prod. V8 255-289-302 Race Series Engine Crankshaft Main Bearing Set

Specifications

Brand: ACL
Part #: 5M590H-09

ACL Ford Prod. V8 255-289-302 Race Series Engine Crankshaft Main Bearing Set

Name: ACL Ford Prod. V8 255-289-302 Race Series Engine Crankshaft Main Bearing Set
Brand: ACL
SKU: acl-acl-ford-prod-v8-255-289-302-race-series-engine-crankshaft-main-bearing-set-t14-631382
Price: 109.94 USD
Availability: BackOrder

$109.94

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ACL Ford V8 255-289-302 Race Series Engine Crankshaft Main Bearing Set

Key Features

Fits many 1962-1968 Ford, Mercury, AC Shelby Cobra, Griffith, and Sunbeam Tiger V8 models.
ACL Race Series main bearings are built for high-performance and demanding applications.
Features a specialized overlay material for improved wear resistance and load capacity.
Maintains consistent oil clearance under high temperatures and stress.
Designed to support Ford 255, 289, and 302 V8 engines.
Part number 5M590H-09.

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Will this fit your vehicle?

Product Details

This is a set of Race Series main bearings from ACL, designed for Ford V8 engines like the 255, 289, and 302. These bearings are a critical part of your engine's rotating assembly, supporting the crankshaft and ensuring it spins smoothly with minimal friction. If you're rebuilding an engine for performance or just need to replace worn bearings, this set is built to handle the demands of a race-oriented application.

ACL has a solid reputation for making well-built engine bearings. This Race Series set uses a special overlay material that's tougher and more resistant to wear than standard bearings, especially under high loads and temperatures. They're designed to maintain oil clearance even when the engine is working hard, which is key for preventing damage and keeping your engine running strong. You'll find these bearings fit right into the specified Ford V8 engines, making them a straightforward replacement during an engine build.

When you're putting an engine back together, especially one that's going to see hard use, using good bearings is non-negotiable. This ACL set is a popular choice for builders who want reliable performance without breaking the bank. Make sure to follow the manufacturer's installation instructions carefully, including proper cleaning and oiling of the crankshaft and bearing surfaces before assembly.