p.s. i could tell you a story about a certain alluminum engine block as supplied by classic performance parts
I'm curious. I took a look and didn't see anything they sold that looked like engine parts.
I know someone building a turbo Lotus twin cam and they bought a nice aluminum block for it. On the first dyno runs it didn't sound right, just a tad off. So he started looking and found a damaged piston. After very careful inspection they found the casting was porous at the top of the bore, just a few very tiny pits. He took some pictures inside the bore and you could see a couple of spots where it was discolored. Tiny bubbles under the surface that got hot and caused pre-ignition.
Now they have to get the block sleeved and it only ran a few minutes.
Having a good mechanic makes a big difference. That motor must have only been a couple of seconds from being a slag heap.