can anyone help me.... i have a zc swap that im about to put into my civic hatch and the intake manifold has pg7x hf-1 stamped on the back of it... can someone tell me which car or motor did it come off of.... i have no clue and from what ive seen so far that the intakes that say pg7 came from the old tegs but a pg7x is not... does anyone know??

 

That sounds about right, PG7 seems to be specific to the older USDM/Brown top D16A1/ZC engines. Is this a DOHC ZC? Are the valve cover bolts in the center, with the "H" on the intake side?