3. The sump’s size is approximately 5¼ deep at the top, 7¾ wide, and 12 inches tall. You will need to find sufficient real estate in the engine compartment to mount the sump such as on the firewall, radiator core support, inner fender, or frame. After relocating the horns, we found a perfect spot on our Nova’s radiator core support. Brackets, hardware, and a template included with the kit make mounting a snap.