The ACL 5M829H-01 is an H-Series main bearing set for Big Block Chevy V8 engines, machined 0.001 in undersize to fit a crankshaft reground 0.001 in below stock journal diameter.
Specifications:
- Type: Main Bearing Set
- Series: H-Series
- Size: 0.001 in Undersize
- Engine Fitment: Big Block Chevy V8
- Part Number: 5M829H-01
FAQ
What does "0.001 in Undersize" mean on this bearing set?
It means the bearings are sized for a crankshaft main journal that has been reground 0.001 in below the factory diameter.
Which engines does the 5M829H-01 fit?
It fits Big Block Chevy V8 engines.
Will this fit a standard, non-reground crankshaft?
No. A standard-diameter crank needs the STD-size version of this bearing set.

