What does '.010 Oversized' mean for these bearings?

'.010 Oversized' means these bearings are designed to fit a crankshaft that has been machined down by 0.010 inches from its original size. This is common during engine rebuilds when crankshaft journals are reconditioned to be smooth and within specification.

What is the benefit of the CT-1 coating on these bearings?

The CT-1 coating on these ACL bearings helps to reduce friction between the bearing and the crankshaft journal. It also aids in wear resistance, which is particularly beneficial in high-performance or heavy-duty applications where engine loads are higher.

Are these bearings suitable for a stock engine rebuild?

While these are Race Series bearings with performance features like the CT-1 coating, they are designed for engines that may have had their crankshaft journals machined down. If your crankshaft is still at standard size, you would need a standard-sized bearing set. Always check your crankshaft journal dimensions before ordering.

Specifications

Brand: ACL
Part #: 5M7298HC-01
UPC: 9315726463284

ACL Chevy V8 4.8/5.3/5.7/6.0L Race Series .010 Oversized Main Bearing Set - CT-1 Coated

Name: ACL Chevy V8 4.8/5.3/5.7/6.0L Race Series .010 Oversized Main Bearing Set - CT-1 Coated
Brand: ACL
SKU: acl-acl-chevy-v8-4-8-5-3-5-7-6-0l-race-series-010-oversized-main-bearing-set-ct--t14-372720
Price: 228.01 USD
Availability: InStock

$228.01

Only 2 left in stock

ACL Race Series main bearing set for Chevy V8 4.8/5.3/5.7/6.0L LS Gen III-IV. .010" oversize with CT-1 coating.

Key Features

Fits 61+ vehicle make/model combinations including Chevrolet, Cadillac, and Buick.
ACL Race Series main bearing set for Chevy V8 4.8/5.3/5.7/6.0L LS Gen III-IV engines.
Features a 270-degree oil groove for enhanced lubrication.
Includes a CT-1 coating to reduce friction and wear.
This set is .010 inch (0.025mm) oversized for use with machined crankshafts.
Well-built for performance applications.

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About this part

Product Details

ACL has been making engine bearings for decades, and this Race Series main bearing set for your Chevy V8 is one of their staples. These bearings are specifically designed for the demands of performance applications, featuring a 270-degree oil groove for improved lubrication and a special CT-1 coating. This coating helps reduce friction and wear, which is crucial when you're pushing your engine harder.

This set is .010 inch (0.025mm) oversized, meaning it's intended for crankshafts that have been machined down to a smaller diameter. The CT-1 coating is a notable feature that helps protect the bearing surface and the crankshaft journals, especially under high load conditions. These bearings are built for engines like the GM LS Gen III and IV, commonly found in a wide range of Chevrolet and GMC trucks, SUVs, and performance cars.

When rebuilding or modifying your LS engine, ensuring proper bearing clearance and lubrication is key to longevity and performance. This ACL set offers a well-built solution for those looking to maintain or improve their engine's internal health, particularly after a crankshaft has been reconditioned. Always refer to your engine's service manual for specific installation procedures and torque specifications.