What is the purpose of a half-groove main bearing?

A half-groove main bearing helps to distribute oil more evenly around the crankshaft journal. This improved oil flow is beneficial for reducing friction and wear, especially in engines that are used frequently or under load.

What engine displacements does this bearing set fit?

This ACL main bearing set is specifically designed for Ford V8 engines with displacements of 351M, 351W, and 400 cubic inches. It covers applications from 1969 up to 1998.

Are these bearings suitable for a performance engine build?

Yes, the half-groove design and well-built materials make these bearings a solid option for performance applications. Proper installation and adherence to oil clearance specifications are key for any performance engine.

Specifications

Brand: ACL
Part #: 5M1432A-40

ACL Ford V8 351M-351W-400 1969-98 (Half Groove) Engine Crankshaft Main Bearing Set

Name: ACL Ford V8 351M-351W-400 1969-98 (Half Groove) Engine Crankshaft Main Bearing Set
Brand: ACL
SKU: acl-acl-ford-v8-351m-351w-400-1969-98-half-groove-engine-crankshaft-main-bearing-t14-632287
Price: 34.93 USD
Availability: BackOrder

$34.93

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Fits 1969-1974 Ford Country Sedan. ACL main bearing set for Ford V8 351M-351W-400 engines, half groove design.

Key Features

Fits 1969-1974 Ford Country Sedan.
Designed for Ford 351M, 351W, and 400 V8 engines.
Half-groove design promotes even oil distribution.
Well-built materials ensure durability for V8 applications.
Helps maintain proper oil clearance for crankshaft journals.
ACL part number 5M1432A-40.

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About this part

Product Details

ACL has been making engine bearings for decades, and this main bearing set for your 1969-1974 Ford Country Sedan is one of their staples. This set is built for Ford's 351M, 351W, and 400 V8 engines, covering a wide range of applications from 1969 through 1998. Main bearings are critical for keeping your crankshaft spinning smoothly within the engine block, and a good set ensures proper oil clearance and reduced friction.

This particular set features a half-groove design, which helps to distribute oil more evenly around the crankshaft journal. This is especially important for performance applications or engines that see a lot of use. ACL uses well-built materials to ensure these bearings can handle the demands of your V8, providing a solid foundation for your engine's rotating assembly. When you're rebuilding or refreshing your engine, getting the main bearings right is key to a long-lasting build.

When installing these bearings, it's important to follow the manufacturer's recommended oil clearance specifications. Using the correct torque values on your main caps is also crucial for proper bearing function and engine longevity. If you're unsure about the process, it's always a good idea to consult your vehicle's service manual or a trusted mechanic.