PFETH-63421BK - PROFLOW BILLET THERMOSTAT SPACER FILLER NECK 58MM H W/PORTS BLK

Proflow's manifold filler necks are made from Billet aluminium;they locate the filler at the highest point to bleed off air on cars with low-mount radiators. These units can be located on either the left or right side of the vehicle. They include 2 x AN16& 1 x AN8 Port holes and 1/8"NPT for the installation of a water temperature sending unit