What is the difference between standard and undersize bearings?

Standard size bearings are used when the crankshaft journals are still within their original factory specifications. Undersize bearings (like -010 or -020) are used when the crankshaft has been machined down to correct for wear or damage.

Do I need to replace my main bearings if I'm rebuilding my engine?

Yes, it's highly recommended to replace your main bearings during any engine rebuild or overhaul. They are critical for supporting the crankshaft and maintaining oil pressure, and old bearings can cause significant engine damage.

What else might I need when installing these main bearings?

When installing main bearings, you'll typically need assembly lube to coat the bearings and crankshaft journals. It's also crucial to have a torque wrench to tighten the main bearing caps to the manufacturer's specifications.

Specifications

Brand: ACL
Part #: 5M1039A-STD

ACL Ford Prod. V8 370-429-460 1968-98 Engine Crankshaft Main Bearing Set

Name: ACL Ford Prod. V8 370-429-460 1968-98 Engine Crankshaft Main Bearing Set
Brand: ACL
SKU: acl-acl-ford-prod-v8-370-429-460-1968-98-engine-crankshaft-main-bearing-set-t14-630733
Price: 37.52 USD
Availability: BackOrder

$37.52

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1969-1973 Ford Country Sedan crankshaft main bearings by ACL. This set is crucial for proper engine oil pressure and smooth operation.

Key Features

Fits 1969-1973 Ford Country Sedan.
Designed for Ford V8 370, 429, and 460 engines.
Standard size bearings for use with factory-spec crankshaft journals.
Supports the crankshaft and maintains proper oil clearance.
Helps ensure stable oil pressure and smooth engine operation.
Well-built by ACL, a known manufacturer of engine bearings.

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About this part

Product Details

You get a full set of crankshaft main bearings in this kit, which means one box handles the critical job of replacing these vital engine components. These bearings sit between the crankshaft and the engine block, supporting the rotating crankshaft and maintaining proper oil clearance. For your 1969-1973 Ford Country Sedan with a V8 370, 429, or 460 engine, getting these right is key to engine health.

ACL has been making engine bearings for a long time, and this set is well-built for the job. They are designed to handle the pressures and heat inside your engine, helping to keep the crankshaft spinning freely and preventing metal-on-metal contact. Proper oil clearance, maintained by these bearings, is essential for keeping oil pressure stable and ensuring your engine runs smoothly for miles to come. This is a standard size set, meaning it's meant to be used when your crankshaft journals are still within their original factory specifications.