The ACL 5M829HNC-01 is a narrowed Race Series main bearing set with a coated bearing surface, machined .001 in undersize for a crankshaft main journal that has been machined undersize during an engine rebuild. It is a narrower-width bearing built for Big Block Chevy 396-454 applications.
Specifications:
- Type: Main Bearing Set (Coated, Narrowed)
- Series: Race Series
- Size: 0.001 in Undersize
- Engine Fitment: Big Block Chevy 396-454
- Part Number: 5M829HNC-01
FAQ
What engine does the ACL 5M829HNC-01 fit?
The ACL 5M829HNC-01 is designed for Big Block Chevy 396-454 applications.
What does the ".001 in Undersize" designation mean?
It means the bearing is machined to match a crankshaft main journal that has been machined .001 in undersize during an engine rebuild or regrind.
Is this bearing set coated?
Yes. The ACL 5M829HNC-01 features a coated bearing surface, per ACL's part designation for this SKU.
Is this a narrowed bearing?
Yes. The ACL 5M829HNC-01 is a narrowed main bearing set, built with a reduced width for engine blocks or crank applications that require it.

