What is the CT-1 coating on these bearings?

The CT-1 coating is a special surface treatment ACL applies to these bearings. It's designed to help reduce friction and wear, particularly during the engine break-in process, and offers added protection against oil starvation.

Are these bearings suitable for a stock engine rebuild?

Yes, these are standard size bearings, meaning they are intended for use with a crankshaft that is still at its original factory dimensions. They offer improved durability over stock bearings for both performance and stock rebuilds.

What other parts are typically needed when replacing main bearings?

When replacing main bearings, it's common practice to also replace the rod bearings, oil pump, and oil filter. You'll also need new main bearing cap bolts and potentially a new oil pan gasket.

Specifications

Brand: ACL
Part #: 5M829HC-STD
UPC: 9315726458044

ACL Chevrolet V8 396/402/427/454 Race Series Standard Size Main Bearing Set - CT-1 Coated

Name: ACL Chevrolet V8 396/402/427/454 Race Series Standard Size Main Bearing Set - CT-1 Coated
Brand: ACL
SKU: acl-acl-chevrolet-v8-396-402-427-454-race-series-standard-size-main-bearing-set--t14-372730
Price: 189.09 USD
Availability: BackOrder

$189.09

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ACL Chevrolet V8 396-454 Race Series Standard Size Main Bearing Set - CT-1 Coated

Key Features

Fits many Chevrolet V8 engines from 1965-1974.
ACL Race Series main bearings are built for performance applications.
Features a CT-1 coating for reduced friction and improved wear resistance.
Standard size bearings are designed for use with a factory-spec crankshaft.
Well-built for durability in demanding engine builds.

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About this part

Product Details

Rebuilding the bottom end of your classic Chevrolet V8, like a 396, 427, or 454? These ACL Race Series main bearings are built for the job. They're designed to handle the demands of performance engines, ensuring your crankshaft stays properly supported and lubricated under stress.

ACL uses a special CT-1 coating on these bearings, which helps reduce friction and wear, especially during the critical break-in period. This coating also offers improved protection against oil starvation. They're a standard size, meaning they're meant to be used with a crankshaft that hasn't been machined undersize. If you're looking for well-built bearings that offer improved durability for your performance build, these are a solid option.

This set fits a wide range of Chevrolet V8 engines from the mid-60s to mid-70s, including popular models like the Impala, Chevelle, Corvette, and C10 pickups. Make sure to check the full fitment list to confirm compatibility with your specific vehicle.