What does the .010 oversize mean for these bearings?

The .010 oversize indicates that these bearings are 0.010 inches larger in diameter than the standard factory size. This is used when the crankshaft journals have been machined down by 0.010 inches during an engine rebuild to ensure a fresh, smooth surface.

What is the benefit of the CT-1 coating?

The CT-1 coating is a dry-film lubricant that helps reduce friction and wear. It's particularly beneficial during the engine's break-in period, providing an extra layer of protection when oil flow might not be fully established.

Are these bearings suitable for a stock engine rebuild?

While these are Race Series bearings with a special coating, they are suitable for stock engine rebuilds, especially if the crankshaft has been machined to a .010 undersize. They offer good protection and durability for a wide range of applications.

ACL Chevy 262/267/302/305/307/327/350 Race Series .010 Oversized Main Bearing Set - CT-1 Coated

Specifications

Brand: ACL
Part #: 5M909HC-10
UPC: 9315726458167

ACL Chevy 262/267/302/305/307/327/350 Race Series .010 Oversized Main Bearing Set - CT-1 Coated

Name: ACL Chevy 262/267/302/305/307/327/350 Race Series .010 Oversized Main Bearing Set - CT-1 Coated
Brand: ACL
SKU: acl-acl-chevy-262-267-302-305-307-327-350-race-series-010-oversized-main-bearing-t14-372742
Price: 140.66 USD
Availability: BackOrder

$140.66

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ACL Chevy 262-350ci V8 Race Series .010 Oversized Main Bearing Set with CT-1 Coating.

Key Features

Fits many 1962-1973 Chevrolet and GMC V8 engines from 262ci to 350ci.
Main bearing set is .010 inches larger than the original factory size.
Features ACL's CT-1 dry-film lubricant coating for improved wear resistance.
Race Series construction is suited for performance engine builds.
Includes main bearings for a complete set.

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Will this fit your vehicle?

Product Details

When you're rebuilding a Chevy V8, getting the main bearings right is crucial for engine health. This ACL Race Series set is designed for engines ranging from 262ci up to 350ci, and it's specifically sized at .010 inches larger than stock. This is common when the crankshaft journals have been machined down during a rebuild to remove imperfections or wear.

These bearings feature ACL's CT-1 coating, which is a dry-film lubricant designed to reduce friction and wear, especially during the critical break-in period. This coating helps protect the bearing surfaces and the crankshaft from damage when oil flow might not be at its peak. The Race Series construction means they're built to handle the demands of performance applications, offering a solid option for your engine build.

This set includes the main bearings needed for your engine. Remember to always follow the manufacturer's installation instructions and torque specifications when installing bearings to ensure proper engine function and longevity.