blocks can be made from one material such as carbon steel or stainless steel the use of traditional o rings is removed the removal of o rings reduces a large percentage of the errors that often result with traditional divider blocks the use of modular sections also required a sophisticated maze of lubrication pathways so that each modular section matches exactly with another by making a mono block these lubrication pathways are shorter and much more efficient not shown and subject to design patents other materials are contemplated for the mono block assembly including but not limited to aluminum magnesium copper tin zinc lead alloy graphite and other composite materials because the process involves the manufacture of only one piece made from one material different and simpler processes to manufacture the divider blocks are contemplated such as the ability to use special molds or moulds and casting processes although it is one piece and generally one material more than one alloy can be used in the manufacture of a one piece divider block the divider block 400 can be made from a permanent mold casting methods and forging methods that are used for current manufacture of automobile pistons or internal combustion engine pistons fig5 shows an x ray view of the mono block 500 in accordance with one embodiment of the current invention the system includes replaceable sleeves 501 that are calibrated precisely to hold and align pistons 502 within its body the sleeves 501 and the pistons 502 allow for the interchangeability of these components without having to dissemble any of.