ACL Holden/Buick 231ci (3.8L V6) Engine Connecting Rod Bearing Set

ACL has been making engine bearings for decades, and this connecting rod bearing set for your Holden or Buick 3.8L V6 is one of their staples. These bearings are crucial for the health of your engine, as they sit between the connecting rod and the crankshaft, allowing for smooth rotation while handling significant loads. If you're rebuilding an engine or dealing with worn components, a fresh set of bearings is essential to restore proper oil clearance and prevent further damage.

This particular set is manufactured to a 0.010 inch undersize specification. This means they are designed to be used when the crankshaft journals have been machined down by 0.010 inches to remove wear or damage. Using the correct undersize bearing ensures that the oil clearance between the bearing and the crankshaft is within the manufacturer's specifications, which is critical for proper lubrication and engine longevity. ACL bearings are known for their well-built construction, using materials selected to withstand the high pressures and temperatures found in an engine's bottom end.

When you're installing these bearings, make sure to follow the manufacturer's recommended installation procedures, including proper cleaning of all components and using the correct torque specifications. It's also a good idea to have your crankshaft journals measured by a machine shop to confirm the exact undersize needed before ordering your bearings.