This is for a flywheel aft or front facing BBC (balancer driven). Came off my Bezer and is about as nice a left turn wet sump oil pan as you can get. 1.75" kick out with scraper, built in windage tray and trap doors for optimum oil control in a left turn racing application. Cleared 4.375" stroke with steel rods no problem. Comes with pick up and oil pump shown. Never had a bomb go off in it although I did weld up a tiny crack on the inside near the oil drain (see pic). This is a very nice pan but sold the Bezer and don't plan on another circle boat anytime soon.