This Aluminum Pro-Style stroker drag race sump style pan is for B.B.C. Mark 4 blocks. It provides better oil control during braking than similar box style pans and works with applications with x-members or steering links under the front of the engine. Most stock chassis will not require modification. It has an 8" Deep by 12" Wide by 10" Long sump for a 7 qt. capacity, can be relieved to take over a 4-3/4" stroke. Pan features a pro-style block high oil recovery pouch, one-way screen windage tray, trap door baffle, oil level check, and magnetic drain plug. The sides of the pan are moved outward of the mounting bolts which are accessed through plugs in the bottom of the pan. This pan requires our 15-170 pickup.