What does '0.030 inch undersize' mean for these main bearings?

This means the bearings are designed to fit a crankshaft that has been machined down by 0.030 inches. This is common during engine rebuilds to clean up wear or damage on the crankshaft journals.

Why are main bearings important for an engine rebuild?

Main bearings support the crankshaft and allow it to rotate smoothly within the engine block. Proper fit and oil clearance are essential for lubrication and preventing damage, ensuring the longevity of your rebuilt engine.

Does this bearing set come with all the necessary hardware for installation?

This listing is for the main bearing set only. It does not include installation hardware. Always refer to the manufacturer's instructions or consult a professional for a complete list of required components and procedures.

Clevite Main Bearing Set MS981P30

Name: Clevite Main Bearing Set
Brand: Clevite
Price: 101.24 USD
Availability: InStock

Clevite Main Bearing Set

$101.24

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Clevite Main Bearing Set MS981P30. This set is 0.030 inch undersize for a precise fit.

Key Features

This set is 0.030 inch undersize.
Supports the crankshaft within the engine block.
Designed for engine rebuilds where the crankshaft has been machined.
Ensures proper oil clearance for lubrication.
Fits a wide range of Ford and Mercury vehicles from 1969-1996.

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Will this fit your vehicle?

Product Details

This Clevite main bearing set is 0.030 inch undersize, meaning it's designed to fit crankshafts that have been machined down by 0.030 inches during an engine rebuild. Main bearings are critical components that support the crankshaft within the engine block, allowing it to spin smoothly while handling significant loads. When you're rebuilding an engine, especially one that's seen a lot of miles or is being performance-tuned, ensuring you have the right bearings is key to a long-lasting build.

Clevite is a well-known name in engine bearings, and this set is built to support your engine's rotating assembly. The 0.030 inch undersize specification is important because it indicates these bearings are intended for a crankshaft that has been ground down to a specific size to clean up wear or damage. Using the correct undersize bearing ensures a proper fit and oil clearance, which is vital for lubrication and preventing premature wear. This set is suitable for a wide range of Ford and Mercury vehicles from the late 60s through the 90s, including popular models like the Ford Bronco, F-150, and E-Series vans.