What is the purpose of the narrowed bearing design?

The narrowed design is intended to provide clearance on the sides of the bearing. This is often necessary for certain crankshafts to prevent interference and ensure proper installation and function within the engine block.

What does a .001 inch oil clearance mean for my engine?

A .001 inch oil clearance is a tighter tolerance than a standard bearing might offer. This helps maintain consistent oil pressure, especially under high RPMs and heavy loads, which is beneficial for performance engines.

Are these bearings suitable for a stock engine rebuild?

While these bearings are designed for high-performance applications, they can also be used in a stock rebuild if you are looking for improved oil pressure control and durability. Always ensure they match your specific engine's requirements.

ACL Chevrolet V8 396/402/427/454 STD Size High Perf Main Bearing Set w/.001 Oil Clearance (Narrowed)

Specifications

Brand: ACL
Part #: 5M829HXN-STD
UPC: 9315726451168

ACL Chevrolet V8 396/402/427/454 STD Size High Perf Main Bearing Set w/.001 Oil Clearance (Narrowed)

Name: ACL Chevrolet V8 396/402/427/454 STD Size High Perf Main Bearing Set w/.001 Oil Clearance (Narrowed)
Brand: ACL
Price: 127.19 USD
Availability: InStock

$127.19

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ACL High Performance Main Bearing Set for Chevrolet V8 396-454 engines. STD size, .001 oil clearance, narrowed.

Key Features

Fits many Chevrolet V8 engines including 396, 402, 427, and 454.
Standard size bearings with a .001 inch oil clearance for improved oil pressure control.
Narrowed design for specific crankshaft applications.
Well-built for high-performance engine applications.
Includes main bearings for a complete set.

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Will this fit your vehicle?

Product Details

When you're rebuilding a performance V8 like the Chevrolet 396, 402, 427, or 454, getting the main bearings right is crucial for engine longevity and power. This set from ACL is built for those high-performance applications, offering a standard size with a specific .001 inch oil clearance. This tighter clearance helps maintain oil pressure under demanding conditions, which is key for keeping those big blocks running cool and strong.

ACL uses well-built materials in these bearings, designed to handle the increased loads and heat that come with performance engines. The narrowed design is also a practical consideration for certain crankshafts, ensuring proper fitment and preventing interference. This set is a solid option if you're aiming for improved reliability in a performance build, whether it's for a classic muscle car or a heavy-duty truck.

This set includes the main bearings you'll need for a standard rebuild. Always refer to your specific engine's service manual for detailed installation procedures and torque specifications to ensure the best results for your build.