The Edelbrock #8051 pipe plug kit includes eight internal Allen-head NPT plugs to close unused ports on intake manifolds or nitrous systems. The kit contains two each of 1/8", 1/4", 3/8" and 1/2" NPT socket-head pipe plugs in a black finish, sold as a set to match a variety of applications and sizes.
Edelbrock Fittings Pipe Plug Kit Internal Allen Head 1/8In 1/4In 3/8In 1/2In NPT Set of 8 Black