What is the purpose of crankshaft main bearings?

Crankshaft main bearings sit between the crankshaft and the engine block. Their main job is to support the crankshaft and allow it to rotate smoothly while maintaining the correct oil clearance for proper lubrication and oil pressure.

Are these bearings undersized or oversized?

This ACL bearing set, part number 5M1051A-30, is a standard size bearing. It is intended for use when the crankshaft journals are within factory specifications.

What else might I need when installing these bearings?

When installing main bearings, it's critical to have a clean work environment and follow the manufacturer's torque specifications precisely. You'll also need assembly lube to coat the bearings and crankshaft journals before installation to ensure proper lubrication on initial startup.

1971-1974 Dodge Challenger Crankshaft Main Bearings

Name: ACL Chrysler Prod. V8 360 1971-73 Engine Crankshaft Main Bearing Set
Brand: ACL
SKU: acl-acl-chrysler-prod-v8-360-1971-73-engine-crankshaft-main-bearing-set-t14-633112
Price: 31.50 USD
Availability: BackOrder

ACL Chrysler Prod. V8 360 1971-73 Engine Crankshaft Main Bearing Set

$31.50

On Backorder

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

Fits 1971-1974 Dodge Challenger. ACL crankshaft main bearing set for 360 V8 engines. Essential for engine rebuilds.

Key Features

Fits 1971-1974 Dodge Challenger, 1971-1973 Chrysler Newport, 1973 Dodge Charger, and 1971-1974 Dodge Dart.
Designed for Chrysler 360 V8 engines.
Main bearing set for crankshaft installation.
Built to original equipment specifications.
Essential for engine rebuilds and overhauls.

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Will this fit your vehicle?

Product Details

Rebuilding the bottom end of your Mopar V8, specifically a 360 engine from 1971-1974, means you'll need a solid set of crankshaft main bearings. These ACL main bearings are built to spec for that classic engine, ensuring the crankshaft spins smoothly within the block. When you're doing a full engine rebuild or just replacing worn bearings, getting the right fit is crucial for oil pressure and longevity.

ACL has been making engine bearings for a long time, and this set is made to the original equipment specifications. They're designed to handle the pressures and heat inside your engine, providing a reliable surface for the crankshaft to rotate on. Installing these bearings is a key step in any engine overhaul, helping to restore proper oil clearance and prevent premature wear.

When you're putting your engine back together, make sure you have all the necessary components. These bearings are sold as a set and are designed for a direct fit on the specified 360 engines. Always refer to your vehicle's service manual for the correct installation procedures and torque specifications.