Name: ACL 1997+ Chevy V8 4.8/5.3/5.7/6.0 Gen 3 .40mm Oversized Main Bearing Set
Brand: ACL
Price: 25.59 USD
Availability: InStock

Question 1

What does '0.040 oversized' mean?

Accepted Answer

When an engine block is align bored or align honed, the main bearing bores are machined to be round and true. This process can enlarge the bores, requiring the use of oversized bearings to maintain the correct crankshaft clearance. These bearings are 0.040 inch larger in outside diameter than the standard size.

Question 2

How do I know if I need oversized bearings?

Accepted Answer

If your engine block has been align bored or honed, you will need to measure the main bearing bores to determine the correct oversize. A machine shop can help you with this measurement. Using standard size bearings in an align bored block will result in excessive crankshaft clearance, which can damage the engine.

Question 3

Are these bearings compatible with aftermarket crankshafts?

Accepted Answer

These bearings are designed to fit standard Chevy V8 crankshafts. If you are using an aftermarket crankshaft, check its specifications to ensure it is compatible with standard size or 0.040 inch oversized bearings. Some aftermarket crankshafts may require different bearing sizes or types.

ACL 1997+ Chevy V8 4.8/5.3/5.7/6.0 Gen 3 .40mm Oversized Main Bearing Set

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