[74Torino]

I’m replacing a 390 short block and I’m not familiar with these pistons I found in my replacement engine. They look to me like lower compression pistons. The engine came from a ‘70 mercury monterey. according to the original specs, a 390 from one did have a regular 9.5 compression ratio, and that was with regular c8ae-h heads. I attached photos here, the closer up one is of the pistons I’m curious about, the other photo shows the pistons I’m used to seeing in 9.5 ratio 390s. Do you guys think these will have the same ratio?