Crankshaft main bearing set — Race Series, Calico CT-1 coated. Supports the crankshaft in the block and carries the main load of every combustion event.
Application: Subaru EJ20/EJ22/EJ25 (For Thrust in #5 Position).
ACL Race Series. Heavy-duty performance bearings, identified by the H in the part number. Designed for high-load and boosted applications.
Calico CT-1 coated (HC). The C in the part number means the shells carry Calico's CT-1 dry film lubricant coating. It cuts friction and abrasive wear, gives intermittent dry lubrication on start-up, and adds embedability for high-load and race engines.
Standard size. For a crankshaft that has not been reground and measures to standard journal diameter.
ACL part number: 5M8309HC-STD
Genuine ACL, supplied in New Zealand by Drift Spec. Not in stock? It can still be ordered — we bring it in.