I have for sale a superb set of HiPo main caps. They have never been machined nor are they pitted. They are complete to include the
C3O E-A rear main cap.
They are not cheap but if you are building a correct HiPo CLONE engine using a correct date coded block and plan to photograph the internals and build then this is what you need.
If you are building a standard block to HiPo specs and will tell people it is correct without benifit of photographing the parts and build before closing the engine then what you need is Mexican main caps. They are much cheaper and will work just as well.
If you are a FANATIC about the restoration of your K code or Shelby then this is what you need. E-mail me for pics as I do not know how to post them here.