Engines and Components› Engine Bearings
ACL
ACL Buick V6 204-231 1990-04 Engine Connecting Rod Bearing Set
SKU: A002 6B1443P-20
Moderate — 2–4 hours
Description
Part #: 6B1443P-20
To be superceded by 6B2306A-20
MIA's Description
ACL Race Series bearings are recognized in the motorsports world for their quality and endurance. They are used in high-performance race engines that have achieved records and championships across various racing disciplines. The combination of design, metallurgy, and engineering allows these bearings to perform under demanding conditions where other bearings might fail. They are available for a wide range of American, Asian, and European performance engines.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | ACL |
| Part Number | A002 6B1443P-20 |
Videos
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return Policy