Almost time for the machinist!

Not at all stupid, it's a valid real question......plate honing, or AKA torque plate honing is bolting a plate to the block to simulate the stresses that will distort the cylinder bores when the cylinder head is bolted down. The purpose is to improve ring seal for more power

Just remember, when all the 340's, 440's, Hemi's were built they WERE NOT PLATE HONED OUT OF THE FACTORY when new and nobody ever said they were slow.........