The ACL 5M1010H-STD is a Standard-size main bearing set from ACL's H-Series line, built for Ford Cleveland/Modified engines. Standard size is machined to fit a stock, unmachined crankshaft main journal, making this the correct baseline set for a stock-tolerance rebuild.
Specifications:
- Type: Main Bearing Set
- Series: H-Series
- Size: Standard
- Engine Fitment: Ford Cleveland/Modified
- Part Number: 5M1010H-STD
FAQ
What size is the ACL 5M1010H-STD bearing set?
It is a Standard-size set, built to fit a stock, unmachined crankshaft main journal.
What engines does the ACL 5M1010H-STD fit?
It is designed for Ford Cleveland/Modified engines.
Is the 5M1010H-STD a main bearing set or a rod bearing set?
It is a main (crankshaft) bearing set, not a connecting rod bearing set.
What ACL series is the 5M1010H-STD part of?
It belongs to ACL's H-Series line of engine bearings.

