The ACL 5M909HXC-STD is a Race Series main bearing set with a coated bearing surface, sized to standard specification with added running clearance, for a stock, unmachined crankshaft main journal. It is built for Small Block Chevy 267-350 applications.
Specifications:
- Type: Main Bearing Set (Coated)
- Series: Race Series
- Size: Standard, w/ Extra Oil Clearance
- Engine Fitment: Small Block Chevy 267-350
- Part Number: 5M909HXC-STD
FAQ
What engine does the ACL 5M909HXC-STD fit?
The ACL 5M909HXC-STD is designed for Small Block Chevy 267-350 applications.
What does "Standard" size mean?
Standard size means the bearing is sized for a stock, unmachined crankshaft main journal, so no machining of the crankshaft is required.
Is this bearing set coated?
Yes. The ACL 5M909HXC-STD features a coated bearing surface, per ACL's part designation for this SKU.
Does this set include extra oil clearance?
Yes. The ACL 5M909HXC-STD is built with additional running clearance versus the standard-clearance version, for applications that call for increased oil flow.

