360 con. rod bolt sizes

and btw...hone plates can only come close in simulating the distortion, but not perfect.

a cyl head is way thicker and structured diff.

chevys are garbage, when you check the decks during rebuild, they have high spots around each hole...paper thin junk.

Ever measured the bores in a SB Mopar before and after installing a torque plate? I have. There is a lot more distortion than you think.

It's all about sealing the combustion chamber as best you can. Remember, the rings & cylinder are the bottom of the combustion chamber. Striaght, round bores are key to making a good seal. The best way to do this is to use a torque plate. Yes, it's not exactly the same as having a cylinder head on the block, but I don't know of any special hone that will hone a bore with the head installed. ;)