Crankshaft main bearing set — Race Series. Supports the crankshaft in the block and carries the main load of every combustion event.
Application: BMW S85B50 5.0L V10.
ACL Race Series. Heavy-duty performance bearings, identified by the H in the part number. Designed for high-load and boosted applications.
0.50mm Undersize. For a crankshaft that has been reground 0.50mm below standard. Measure your journals before ordering — fitting an undersize set to a standard crank will leave the clearance far too tight.
ACL part number: 6M1581H-.50
Genuine ACL, supplied in New Zealand by Drift Spec. Not in stock? It can still be ordered — we bring it in.