Block Plug and Breather fittings are used on B-Series Engines to block off the OEM breather box port and allow you to hook up 10AN hose ends for catch can / breather systems.
- Double O-Ringed for tight seal on plug
Each Kit includes:
- 2 x M28 to -10AN Breather Fittings
NOTE: THE BLOCK PLUG WILL NOT WORK WITH B20 ENGINES, BUT THE 2 FITTINGS WILL WORK.