Clear cast Acrylic bore cylinder for flow bench testing cylinder head fixture stand. These are removable acrylic cylinder which fit Deltron Pro Series bore simulator stand part # DEL-BFS400. With the clear cylinder can be used for smoke test, cross flow inlet to exhaust, wet flow and video. This is a blank and will be custom machined to customer bore dimension. Many different bore sizes available from 3.00″-4.625″. These are a custom made to order item 2-3 business weeks.