This is a original Holman-Moody twin oil filter/oil cooler specifically made for the early big block Ford boat applications such as 390/427 (based on my research). Designed to bolt directly to the block. Possibly could be used for other applications, mounted differently or used in a way you dream up for your build. These look beautiful when the aluminum housing and brass end caps are polished. $400.00 SHIPPED or best reasonable offer.... within the contiguous States(and it's heavy) PM me if interested Thanks...