What Are You Doing To/With Your Car Today?

Well the engine touch up has been extended a bit. I found a few cracked rings but one had done damage to both the piston and the cylinder wall. Fortunately I have a mint, standard bore 4 bolt main sitting here. I wasn't planning on that but oh well!
Yes the numbers are incorrect! It is the way the previous builder has them stamped.

View attachment 1715498223 View attachment 1715498224 View attachment 1715498222
Detonation ?
Were you hitting this with a power adder ?