What is the difference between these and main bearings?

Connecting rod bearings, like these, sit between the connecting rod and the crankshaft. Main bearings support the crankshaft within the engine block itself. Both are critical for smooth engine operation and proper oil pressure.

Do these bearings come with a specific size or clearance?

This set is designed with a .660 inch bearing width. It's important to ensure this matches the specifications for your specific engine build and crankshaft journals.

What else might I need when installing these bearings?

When installing connecting rod bearings, you'll need to follow the correct installation procedure, which includes proper cleaning of all parts, checking crankshaft journal condition, and applying assembly lube to the bearings and journals before torquing the connecting rod caps to spec.

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Trusted Since 1957

Est. 1957

Specifications

Brand: ACL
Part #: 6B1228PO/S2-10

ACL Buick V6 181-204-231-252 1977-90 Engine Connecting Rod Bearing Set

Name: ACL Buick V6 181-204-231-252 1977-90 Engine Connecting Rod Bearing Set
Brand: ACL
SKU: acl-acl-buick-v6-181-204-231-252-1977-90-engine-connecting-rod-bearing-set-t14-632981
Price: 11.78 USD
Availability: BackOrder

$11.78

On Backorder

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

Fits 1978-1987 Buick Regal. ACL connecting rod bearings for your V6 engine rebuild.

Key Features

Fits 1978-1987 Buick Regal.
Connecting rod bearing set for Buick V6 181, 204, 231, and 252 engines.
Bearing width is .660 inches.
Designed for even-fire 231 engines and 231 Turbo engines.
ACL is a well-known brand for engine components.

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About this part

Product Details

Doing an engine rebuild on your 1978-1987 Buick Regal with the 4.1L (252ci) V6? These ACL connecting rod bearings are a key part of getting your engine back together right. They sit between the connecting rod and the crankshaft, allowing the rod to spin smoothly while handling the forces from combustion.

This set is built for the 181, (89-90) 204, (77-88) 231 Type A (even fire), 231 Turbo, and 252 engines. The bearing width is .660 inches, which is important for proper oil clearance and load distribution on the crankshaft journals. ACL is a well-known name in engine bearings, and this set is a solid option for a street rebuild or a performance build where you want reliable components.

When you're putting an engine back together, using new bearings is essential for proper oil pressure and long-term engine health. Make sure to follow the manufacturer's instructions for installation and torque specifications.