Hello! Does someone know what the 5 letters (mine has CBBCC) mean what are stamped below the engine block? Engine is b16b. Thanks!

 

Post a picture. You should have numbers stamped there.

 

Those letters are HALF of the digits that correspond to the bearing colors for the main caps in your particular block. The five numbers on your crankshaft provide the other half of the two digit code to represent the bearing color in the factory chart.

 

Thanks. Just saw these yesterday on my own rig (D16Z6) and figured they were bearing codes.

 

Thanks again!!!