What is the difference between standard size and undersize bearings?

Standard size bearings are meant to be used with a crankshaft that is at its original factory dimensions. Undersize bearings are used when a crankshaft has been machined down to correct for wear or damage.

What material is used for the ACL Race Series bearings?

These bearings feature a specialized overlay material that ACL has developed for strength and compatibility with various crankshaft surfaces, making them suitable for performance applications.

Do I need to purchase anything else to install these bearings?

You will need engine assembly lubricant to properly coat the bearings before installation. It's also recommended to have a service manual for your specific vehicle for detailed installation procedures and torque specifications.

Specifications

Brand: ACL
Part #: 5M1038H-STD
UPC: 9315726188309

ACL Chevrolet V8 400 Race Series Standard Size Main Bearing Set

Name: ACL Chevrolet V8 400 Race Series Standard Size Main Bearing Set
Brand: ACL
SKU: acl-acl-chevrolet-v8-400-race-series-standard-size-main-bearing-set-t14-487191
Price: 105.13 USD
Availability: BackOrder

$105.13

On Backorder

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

ACL Chevrolet V8 400 Race Series Standard Size Main Bearing Set. Get reliable engine performance with these well-built bearings.

Key Features

Fits Pontiac Bonneville, Catalina, Firebird, GTO, Grand Prix, LeMans, and more (1967-1974).
Designed for Chevrolet V8 400 engines.
Standard size bearings for use with a non-machined crankshaft.
Race Series construction for improved durability in performance applications.
Features a strong overlay material for reliable performance.
ACL is a well-known manufacturer of engine bearings.

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About this part

Product Details

ACL has been making engine bearings for a long time, and this Race Series set is designed for engines that see harder use. They're made with a specific overlay material that's known for its strength and ability to work well with different crankshafts. Because these are standard size, they're meant to be used with a crankshaft that hasn't been machined undersize. If your engine build calls for precision and durability, these bearings are a solid choice.

This set includes all the main bearings you'll need for your V8 400 engine. Make sure to follow the manufacturer's installation instructions carefully, as proper oil clearance and assembly are critical for engine bearing longevity.