SBC 23 Degree Chevy Racing Cylinder Heads | Pro-Filer
All American Aluminum 23° SBC Racing Heads. Whether it's circle track, drag racing or street performance the Pro-Filer All-American Series SBC cylinder heads are the solution for your big horsepower needs. Featuring powerful port designs that are packed with air speed and unbeatable, made in the U.S.A., casting technology.