VX Vs. Hf mani.
 

So do these two have the same flange...?

Re: VX Vs. Hf mani.
 

Yes.Here is a article showing all the diff ones.https://www.homemadeturbo.com/tech_p...s/HF_manifold/

Re: VX Vs. Hf mani.
 

that's a good informer tech page, but yes they will all fit D-series(perhaps with the exception of the ZC motor??)

Re: VX Vs. Hf mani.
 

They fit the ZC as well. That is a D series engine.

Re: VX Vs. Hf mani.
 

port matching is required on dohc zc i think