I agree they are all the same, but I would like to get as close as possible for my resto when i bought her in the UK she had a 1965 396, now she has a 454 I do have a 67 YS block that i may just have to build and install but i keep my fingers crossed. as for grinding and re stamping well that's dishonest I know it is getting very common to do such things which is unfortunate for the people who pride themselves on real #matching and # correct cars. besides that probably wouldn't be able to find the correct font for re stamping LOL..