New reproduction 1955 V8, 1956-1957 base motor & 1966-1967 300hp Corvette water pump pulley. Single groove stamped pulley mounts on the water pump. 7 1/8" OD. Original GM # 3905995.
Our technicians have determined that the installation difficulty level of this item is a 2 on a scale of 1-5. Read more about our install ratings here.