Name: ACL BMW S54B32 0.25mm Oversized High Performance Rod Bearing Set
Brand: ACL
Price: 142.17 USD
Availability: InStock

Question 1

What does '0.25mm oversized' mean?

Accepted Answer

When an engine is rebuilt, the bearing surfaces are often machined to ensure they are perfectly round and smooth. This process removes a small amount of material, increasing the diameter of the rod bore. An oversized bearing compensates for this extra space, maintaining the correct oil clearance.

Question 2

What other parts do I need to install these bearings?

Accepted Answer

Besides the bearings themselves, you'll need assembly lube to protect the bearing surfaces during initial startup. Always replace the rod bolts when installing new rod bearings, as they are torque-to-yield and should not be reused.

Question 3

How do I know if I need oversized bearings?

Accepted Answer

If your engine has been rebuilt and the rod journals have been machined, you likely need oversized bearings. Consult your machinist to determine the correct amount of oversize needed to achieve proper oil clearance.

ACL BMW S54B32 0.25mm Oversized High Performance Rod Bearing Set

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