What does '0.040 inch undersize' mean for these main bearings?

This means the bearings are manufactured to be 0.040 inches smaller in diameter than standard size. They are intended for use when the engine's crankshaft has been machined down by 0.040 inches to correct wear or damage.

Do these main bearings come with installation instructions?

While this set includes the main bearings, it does not typically come with detailed installation instructions. Always refer to your vehicle's specific service manual for proper installation procedures, torque specifications, and oil clearance measurements.

What other parts are typically needed when replacing main bearings?

When replacing main bearings, it's common practice to also replace the connecting rod bearings, piston rings, and oil pump. A thorough cleaning of the engine block and crankshaft is also essential before assembly.

Clevite Main Bearing Set 40-040" Undersize MS829A40

Name: Clevite Chevrolet V8 366-396-402-427-454 1965-00 Main Bearing Set
Brand: Clevite
Price: 56.77 USD
Availability: InStock

Clevite Chevrolet V8 366-396-402-427-454 1965-00 Main Bearing Set

$56.77

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Clevite V8 Main Bearing Set for Chevrolet 366-454 engines, 1965-2000. Undersize 0.040".

Key Features

Fits 1965-2000 Chevrolet V8 engines including 366, 396, 402, 427, and 454.
Main bearing set is 0.040 inch undersize, intended for use with a machined crankshaft.
Designed for a wide range of Chevrolet vehicles such as C10 Pickup, Camaro, and Corvette.
Provides essential crankshaft support for V8 engine builds.
From Clevite, a popular brand for engine components.

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Will this fit your vehicle?

Product Details

If you're rebuilding the bottom end of your Chevrolet V8, especially those big blocks like the 366, 396, 402, 427, or 454, a fresh set of main bearings is crucial for proper crankshaft support. This set from Clevite is designed to fit a wide range of Chevrolet vehicles from 1965 through 2000, including models like the C10 Pickup, Camaro, and Corvette.

These main bearings are built to handle the stresses of a V8 engine. They are manufactured to be 0.040 inches undersize, which is important if your crankshaft has been machined down during a rebuild to clean up wear or damage. Using the correct undersize bearing ensures a precise fit and proper oil clearance, which is vital for engine longevity and performance. Clevite is a well-known name in engine components, and this set is a solid option for anyone looking to get their engine back in shape.

When installing these bearings, always refer to your vehicle's specific service manual for the correct torque specifications and assembly procedures. Ensuring proper oil clearance and clean installation is key to a successful engine rebuild.