Main bearings, 1275 2" mains. 10 thou oversize. Heavy duty steel backed bearing for durability and long life. The bearings to use if you want it to last. The only bearings to use on a fast road motor.
ACL branded
VP suffix bearings are made by Mahle with lead indium content for road or race
VC suffix big ends are Mahle top race bearings
VM suffix main bearings are Mahle top race bearings