What is the main function of main bearings in an engine?

Main bearings support the crankshaft within the engine block. They create a low-friction surface that allows the crankshaft to rotate smoothly while maintaining critical oil clearances. This support is vital for engine operation and longevity.

What size are these Clevite main bearings?

The part number MS429P1 indicates a standard size main bearing set. If your crankshaft has been machined undersize, you would need a different bearing size (e.g., -010 or -020).

What else might I need when installing main bearings?

For a proper installation, you'll need engine assembly lube to coat the bearing surfaces and crankshaft journals. You should also have a torque wrench to tighten the main caps to the manufacturer's specifications and a clean shop environment to prevent contamination.

Clevite Main Bearing Set MS429P1 - 1955-1967 Chevrolet V8

Name: Clevite Chevrolet Pass & Trk 265 283 302 327 V8 1955-67 Main Bearing Set
Brand: Clevite
SKU: clevite-clevite-chevrolet-pass-trk-265-283-302-327-v8-1955-67-main-bearing-set-t14-58359
Price: 60.88 USD
Availability: BackOrder

Clevite Chevrolet Pass & Trk 265 283 302 327 V8 1955-67 Main Bearing Set

$60.88

On Backorder

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

Clevite Chevrolet Pass & Trk 265 283 302 327 V8 1955-67 Main Bearing Set

Key Features

Fits 1955-1967 Chevrolet passenger cars and trucks with 265, 283, 302, and 327 V8 engines.
Main bearing set from Clevite, a trusted name in engine components.
Designed to support the crankshaft and maintain proper oil clearances.
Helps ensure smooth crankshaft rotation and consistent oil pressure.
Essential for engine rebuilds and bottom-end repairs.

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Will this fit your vehicle?

Product Details

If you're rebuilding the bottom end of a classic Chevrolet V8, like those found in a 1955-1967 Bel Air, Impala, or Corvette, a solid set of main bearings is crucial. This Clevite MS429P1 main bearing set is designed to replace the original bearings in engines like the 265, 283, 302, and 327 cubic inch V8s. Proper main bearings are essential for supporting the crankshaft and ensuring it spins smoothly within the engine block, which directly impacts oil pressure and overall engine health.

Clevite is a well-known name in engine components, and this set is built to meet the demands of these older, robust V8s. The bearings are constructed to provide a reliable interface between the crankshaft and the main caps, helping to maintain consistent oil clearances. This is important for preventing excessive wear and ensuring the longevity of your rebuilt engine. When installing, always ensure the crankshaft journals are clean and within spec, and that you're using the correct assembly lube to protect the bearing surfaces during initial startup.