What does '.001 Oversized' mean for these bearings?

This means the bearings are manufactured to be 0.001 inches larger in diameter than a standard-sized bearing. This is necessary when your engine's crankshaft has been machined down (ground undersize) to repair wear or damage. The oversized bearing compensates for the removed material, restoring proper oil clearance.

What is the CT-1 coating and why is it beneficial?

The CT-1 coating is an advanced surface treatment applied by ACL. It helps to reduce friction between the bearing and the crankshaft, which in turn minimizes wear, especially during engine break-in and under high-load conditions. This coating contributes to longer bearing life and more consistent performance.

Are these bearings suitable for a stock rebuild or a performance build?

These are ACL's Race Series bearings, which are built with robust materials and designed for improved durability. While they can be used in a stock rebuild, they are particularly well-suited for performance applications where engines are subjected to higher stresses and RPMs.

ACL Chevy 262/267/302/305/307/327/350 Race Series .001 Oversized Main Bearing Set - CT-1 Coated

Specifications

Brand: ACL
Part #: 5M909HC-01
UPC: 9315726459447

ACL Chevy 262/267/302/305/307/327/350 Race Series .001 Oversized Main Bearing Set - CT-1 Coated

Name: ACL Chevy 262/267/302/305/307/327/350 Race Series .001 Oversized Main Bearing Set - CT-1 Coated
Brand: ACL
SKU: acl-acl-chevy-262-267-302-305-307-327-350-race-series-001-oversized-main-bearing-t14-372740
Price: 140.66 USD
Availability: BackOrder

$140.66

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

ACL Chevy 262-350ci V8 Race Series .001" oversized main bearing set with CT-1 coating.

Key Features

Fits a wide range of Chevrolet and GMC V8 engines from 262ci to 350ci.
Main bearings are .001 inch oversized for use with machined crankshaft journals.
Features ACL's CT-1 coating to reduce friction and improve wear resistance.
Race Series construction offers improved durability for performance applications.
Designed for a broad spectrum of Chevrolet and GMC vehicles from 1968-1973.

Secure CheckoutFast Shipping631-982-0042

Will this fit your vehicle?

Product Details

If you're rebuilding a Chevy V8 engine and need to ensure a solid foundation, this ACL Race Series main bearing set is a smart choice. These bearings are designed to handle the demands of performance builds, offering improved durability and consistent oil clearance. They are specifically sized at .001 inch oversized, which is crucial when the crankshaft journals have been machined to a repair size.

ACL has applied their CT-1 coating to these bearings. This advanced coating helps reduce friction and wear, especially during the critical break-in period and under high-stress conditions. The Race Series is built with robust materials to maintain their shape and integrity, even when your engine is pushed harder than stock. This set is intended for a wide range of popular Chevy V8 displacements, from the 262ci all the way up to the 350ci.

This set includes main bearings for a variety of Chevrolet and GMC vehicles from the late 60s and early 70s, covering popular models like the Chevelle, Camaro, Impala, and C/K series trucks. Always refer to your engine's specific service manual for proper installation procedures and torque specifications.