What does the .01mm undersize mean for my engine build?

The .01mm undersize indicates these bearings are meant for a crankshaft that has been machined down by 0.01mm (approximately 0.0004 inches). This is typically done to correct for wear or to achieve precise bearing clearances during an engine rebuild.

What is trimetal construction?

Trimetal construction refers to a bearing design that uses three distinct layers of materials. This combination is chosen for its ability to withstand high loads and temperatures while maintaining good oil film retention, making it a well-built choice for performance engines.

Do these bearings come with new main bolts?

This listing is for the main bearing set only. It does not include new main bolts or any other installation hardware. You will need to source those separately if required for your engine build.

ACL 1967-1998 Chevy V8 267/305/327/350 .01mm Trimetal Oversized Main Bearing Set

Specifications

Brand: ACL
Part #: 5M909P-01
UPC: 9315726097984

ACL 1967-1998 Chevy V8 267/305/327/350 .01mm Trimetal Oversized Main Bearing Set

Name: ACL 1967-1998 Chevy V8 267/305/327/350 .01mm Trimetal Oversized Main Bearing Set
Brand: ACL
Price: 47.24 USD
Availability: InStock

$47.24

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Fits 1967-1973 Chevy Camaro. ACL .01mm undersize trimetal main bearing set for Chevy V8 engines.

Key Features

Fits 1967-1973 Chevrolet Camaro, 1969-1974 Chevrolet C10 Pickup, and 1962-1967 Chevrolet Impala.
Designed for Chevy V8 engines including 267, 305, 327, and 350 cubic inch displacements.
Features ACL's trimetal construction for reliable performance and durability.
This is a .01mm undersize main bearing set, intended for use with a crankshaft machined to that specification.
Helps establish proper crankshaft bearing clearance for optimal oil pressure and engine longevity.

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Fits these vehicles

Chevrolet C10 Pickup 1969-1974
Chevrolet Camaro 1967-1973
Chevrolet Impala 1962-1967

Product Details

ACL has been making engine bearings for decades, and this .01mm undersize main bearing set for your 1967-1973 Chevrolet Camaro is one of their staples. These bearings are crucial for the health of your engine's rotating assembly, providing a smooth surface for the crankshaft to spin within the engine block. When rebuilding or refreshing a Chevy V8 like the 267, 305, 327, or 350, getting the bearing clearances just right is key to oil pressure and engine longevity.

This set features ACL's trimetal construction, which is a well-built combination of materials designed to handle the loads and temperatures inside your engine. The .01mm (or 0.0004 inch) undersize means these bearings are intended for crankshafts that have been machined down by that amount to correct for wear or to achieve a specific clearance. This is a common step when rebuilding an engine to ensure optimal performance and oil flow. ACL is known for making solid options that fit right and perform reliably.

When you're putting your engine back together, especially after a machine shop has worked on the crankshaft, using the correct size bearings is essential. These ACL bearings are a popular choice for Chevy V8 builds where precision and durability are important.