What is the difference between standard and undersize bearings?

Standard size bearings are a direct replacement for original equipment when the crankshaft journals are still within their original specifications. Undersize bearings are used when the crankshaft has been machined down to correct for wear or damage.

Do these bearings come with assembly lube?

This set includes the main bearings themselves. You will need to purchase a high-quality engine assembly lubricant separately to properly coat the bearings and crankshaft journals before installation.

What else might I need to install these bearings?

For a proper installation, you'll need to verify bearing clearances using Plastigage, a torque wrench to tighten the main caps to specification, and engine assembly lube. It's also recommended to clean the engine block and crankshaft thoroughly.

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Est. 1957

ACL 1965-2000 Chevy V8 396/402/427/454 Standard Size Main Bearing Set

Specifications

Brand: ACL
Part #: 5M829P-STD
UPC: 9315726088593

ACL 1965-2000 Chevy V8 396/402/427/454 Standard Size Main Bearing Set

Name: ACL 1965-2000 Chevy V8 396/402/427/454 Standard Size Main Bearing Set
Brand: ACL
Price: 62.52 USD
Availability: InStock

$62.52

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ACL 1965-2000 Chevy V8 396/402/427/454 Standard Size Main Bearing Set. Restores proper oil clearance and engine performance.

Key Features

Fits 1965-2000 Chevrolet V8 396, 402, 427, and 454 cubic inch engines.
Standard size bearings replace worn original equipment.
Helps restore proper oil pressure and crankshaft support.
Designed for reliable engine performance and longevity.
Includes all necessary main bearings for a complete set.

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Will this fit your vehicle?

Product Details

When the main bearings in your Chevy V8 engine wear out, you'll notice a drop in oil pressure, especially at idle, and you might even hear a knocking sound. These ACL main bearings are built to replace your original equipment, helping to restore proper oil clearance between the crankshaft and the engine block. This is crucial for maintaining oil pressure and ensuring the crankshaft spins smoothly without excessive wear. This set is for standard size applications, meaning it's a direct replacement for your original bearings if the crankshaft hasn't been machined undersize.

This set includes all the main bearings you'll need for your 396, 402, 427, or 454 big-block Chevy engine. ACL has been making engine bearings for a long time, and these are a solid option for rebuilding or repairing your engine. Make sure to follow the manufacturer's instructions for proper installation, including checking bearing clearances with Plastigage and using the correct assembly lube.