Man it's hard to believe the caps were switched, they are registered in place with pins. There's no way mine could be switched unless the pins were removed as they are not in the same position at each saddle. The number four is also the thrust bearing, the cap is machined on the sides to fit the bearing. Were the bearings and crank in the block or just the block and caps with the caps on loose? Did the machine shop assemble the whole engine or just do the block machining? I recheck every spec on a block when I get one from a machine shop, I'm not saying machinists aren't professional and competent but it's better to be safe than sorry.
