What is the primary function of main bearings?

Main bearings are essential components that support the crankshaft within the engine block. They create a low-friction surface for the crankshaft to rotate on, helping to maintain consistent oil pressure and reduce wear.

What vehicles does this Clevite main bearing set fit?

This set is designed for Pontiac V8 engines with 421, 428, or 455 cubic inch displacements, covering model years 1967-1976. This includes vehicles such as the Pontiac Bonneville, Catalina, and Grand Prix from those years.

Are any special tools required for installing main bearings?

Installation of main bearings typically requires specialized tools for crankshaft removal and installation, as well as proper torque wrenches. Always refer to the manufacturer's service manual for the correct procedures and tool requirements.

Clevite Main Bearing Set MS667P - Pontiac V8 421-428-455

Name: Clevite Pontiac V8 421-428-455 1967-1976 Main Bearing Set
Brand: Clevite
SKU: clevite-clevite-pontiac-v8-421-428-455-1967-1976-main-bearing-set-t14-54290
Price: 236.74 USD
Availability: BackOrder

Clevite Pontiac V8 421-428-455 1967-1976 Main Bearing Set

$236.74

On Backorder

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

Clevite Pontiac V8 421-428-455 1967-1976 Main Bearing Set

Key Features

Fits Pontiac V8 421, 428, and 455 cubic inch engines from 1967-1976.
Well-built for reliable engine performance and durability.
Designed to support the crankshaft and maintain proper oil clearance.
Part number MS667P.

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Will this fit your vehicle?

Product Details

Clevite is a well-known name in engine components, especially for their bearings. This main bearing set, part number MS667P, is built for Pontiac V8 engines displacing 421, 428, and 455 cubic inches, covering model years from 1967 through 1976. These bearings are crucial for supporting the crankshaft and ensuring it spins smoothly within the engine block, which is fundamental for proper engine operation.

This set is constructed with materials and designs aimed at providing reliable performance and durability for these classic V8s. They are designed to fit right into the specified Pontiac engines, making them a solid option for rebuilds or repairs. Proper installation is key, so always refer to the manufacturer's instructions to ensure the crankshaft is properly supported and aligned.

This bearing set fits a range of vehicles, including models like the Pontiac Bonneville, Catalina, and Grand Prix from the specified years. Ensuring you have the correct main bearings is a critical step in any engine overhaul to maintain oil pressure and reduce friction.