Name: ACL Chevrolet 4 122-140 1971-77 Engine Crankshaft Main Bearing Set
Brand: ACL
SKU: acl-acl-chevrolet-4-122-140-1971-77-engine-crankshaft-main-bearing-set-t14-632242
Price: 41.05 USD
Availability: BackOrder

Question 1

What does a main bearing do?

Accepted Answer

Main bearings support the crankshaft, allowing it to spin freely within the engine block. They are a critical component for proper engine operation. Without good bearings, the crank will bind and eventually destroy itself and the engine.

Question 2

How do I know if my main bearings are worn?

Accepted Answer

Worn main bearings can cause a low-frequency knocking sound, especially under load. You might also see a drop in oil pressure. If you're rebuilding the engine, always replace the bearings as a matter of course.

Question 3

Are these standard size bearings?

Accepted Answer

This part number is for a standard-size main bearing set. Always check your crankshaft's dimensions before ordering bearings. If the crank has been turned, you'll need undersized bearings.

Specifications

ACL Chevrolet 4 122-140 1971-77 Engine Crankshaft Main Bearing Set

Key Features

Specifications

Frequently Asked Questions

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