That appears to be the 70-71 Hemi pan. It fits great on my e body. It hangs down slightly below the k member. Make sure you get the correct pickup for it. Also get a windage tray if you don't have one. Somebody sells the skid plate that welds to the bottom of the k-member to help protect this pan. The 70-71 Hemi and 440 sixpack cars came with this pan and skid plate.

This is a front sump pan and for a hard launching wheel standing race car there may be better but far more expensive solutions. I have however seen them on some pretty fast cars.