Look like A-series hitachis to me, but which head does it suit? Are they complete?

Attach file:

---

  $(KGrHqNHJCMFCgKv4fICBQvDkEQ57g~~48_20.JPG (87.39 KB)


  $(KGrHqZ,!ogFBvNMg+h6BQvDj-B0MQ~~48_20.JPG (89.55 KB)


  $(KGrHqZHJC4FC2vIR8qJBQvbYQDC7!~~48_20.JPG (93.50 KB)

Looks like they suite and oval port head, so a14/15 here. H75 and H89 heads.

Which carbs are they? Hitachi HJE38W.

I can see the Hitachi emblem on the top of the fuel bowls.




Double check the part number by reading the tag or printed ID on the side of the fuel bowls.

Maybe not A14/A15 small ports

Measure them:
* Large: 38 mm tall
* A14: 36 mm tall

No water jacket in manifold? Strange.

looks like enuff there to make them go,
even have the cable linkage that is usually MIA.. (i need one)

Unknown manifold

* No water jackets, so cannot be A12GX or JDM A12T
* Looks like the Large GX-size ports
* Has the IMS (idle mixture system) bosses, like A12T manifold, but they are not tapped.

The carbs are flat-tops but are not JDM A-series -- they don't have IMS parts.

A14 factory twin carb (top)
A12 factory twin carb (bottom, large)



Even the Nissan Competion manifold had the water ports.

That manifold has the happy face ports (but missing the mouth), so they are probably suit an GX head, not an H89 head. You can port match the head but the flow will be wrong. Carefully port the H89 head.

Here is the A14 factory manifold with the A14/A15 size ports.

Wow thanks for the replies guys! Very helpful.