ACL Race Series big end bearings for the BMW S14 engine as found in the E30 320iS and M3. ACL bearings are a vital upgrade that increase the life and strength of your engine.

Why not add a bottle of Hack Engineering Engine Assembly Lubricant to protect your new bearings on first start up?

Please note that we cannot take opened packets of bearings or bolts as a return – please double check that you have the right components before opening packages.