What is the main function of main bearings?

Main bearings support the crankshaft within the engine block. They create a low-friction surface that allows the crankshaft to rotate smoothly while maintaining the correct oil clearance for lubrication.

What is the size of these main bearings?

This is a standard size main bearing set, indicated by the 'P30' in the part number, meaning it is designed for a factory-spec crankshaft. If your crankshaft has been machined, you may need an undersize bearing set.

What else might I need when installing main bearings?

When installing main bearings, it's crucial to have assembly lubricant to coat the bearings and crankshaft journals. You'll also need a torque wrench to tighten the main caps to the manufacturer's specifications and a clean work environment.

Clevite Main Bearing Set MS178P30

Name: Clevite Main Bearing Set
Brand: Clevite
SKU: clevite-clevite-main-bearing-set-t14-56702
Price: 168.60 USD
Availability: BackOrder

Clevite Main Bearing Set

$168.60

On Backorder

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

Clevite Main Bearing Set MS178P30. Fits many 1950s Ford and Mercury engines, ensuring smooth crankshaft operation.

Key Features

Fits 1953-1959 Ford and Mercury vehicles.
Designed to replace original main bearings for proper crankshaft support.
Helps reduce friction and wear in the engine's bottom end.
Manufactured to meet or exceed original equipment specifications.
Ensures correct oil clearance for crankshaft lubrication.

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Will this fit your vehicle?

Product Details

If you're rebuilding the bottom end of your classic Ford or Mercury V8, a fresh set of main bearings is essential for proper crankshaft support. This Clevite Main Bearing Set, part number MS178P30, is designed to replace the original bearings in a wide range of 1950s Ford and Mercury vehicles, including models like the Ford F-100, Fairlane, and Mercury Montclair. These bearings are critical for reducing friction and wear between the crankshaft and the engine block, ensuring your engine runs smoothly and reliably.

Clevite is known for making well-built engine components, and this bearing set is no exception. They are manufactured to meet or exceed original equipment specifications, meaning they'll fit right and perform as expected. The precise dimensions and material composition are key to maintaining the correct oil clearance for your crankshaft, which is vital for lubrication and preventing premature wear. When installing, always ensure the crankshaft journals are clean and properly prepped, and use the correct assembly lube to protect the new bearings during initial startup.