Theyre 192° exhaust port. Kinda an in between'er but low 190's is what we've had good personal experience with. Its been super hard to keep the website updated or even add cylinder kits to it before they're already sold/spoken for with the parts shortages and the extremely long wait time on plating. Partially why we made a sleeve to install in our casting. All the labor of installing, port match, bore and hone is done in house vs sending them to plating at Millennium for almost 3 months. Sent from my SM-G965U using Tapatalk