440 six pack pistons and some questions

1930 said
Im not understanding the lingo, to mean when you say press fit it sounds like a tight fit..... a wrist pin that is tight somewhere, my wrist pin that came with the pistons are the floater style as far as I know, can you elaborate just so I understand in the future.

Edit: Ok I think I figured it out by reading some of the posts above, it sounds like some wrist pins are held within the piston with some sort of C-clip and the other style ( which would be mine ) are pressed into the piston/connecting rod assy

I have the 145-6002 rod bolts on their way, thanks again

Press fit pins are pressed into the small end of the rod, it is an interference fit, the pin is actually a few thousandths of an inch bigger than the small end bore.
Floating pins are free in both the rod and piston, hence the need for retaining clips.
The basics of resizing the big end comprises of taking a small amount off the rod/cap mating surface, installing the new fasteners, torquing them, then re-honing the end
round to the correct dimension.
So, these heads have been run before? Just curious where they came from.........