Please help ID this intake

[MikeCio1]

I think I put this in the wrong spot yesterday. I apologize.
Was there such a thing as a non EGR intake on a 1974 Z28? I have some numbers from it. 340 234 , also the date code is A 28 4. Can anyone ID this ?
Thanks in advance

 

[Chevyforever]

I tried unsuccessfully this morning and honestly I thought i could track it down but nope ! Have nothing that recognizes that casting # on the intake. Could it be from a 'vette ?

 

[MikeCio1]

I tried unsuccessfully this morning and honestly I thought i could track it down but nope ! Have nothing that recognizes that casting # on the intake. Could it be from a 'vette ?

Never thought of that. It could be but it was represented to me as a 74 Z.
Thanks for trying!

 

[72SS9681]

I've checked every Chevrolet parts/reference book I have and don't show this part number. Google search showed several on ebay so it's probably not rare. Only thing I found on-line was on another forum I guy was trying to ID an engine with this manifold and it the engine number showed it being out of a Truck. This make sense as I believe trucks weren't required to have the same emissions requirements back in the day. Other than that I didn't find anything definitive indicating it couldn't be correct for your Z although everything I looked at indicate a 74 Z28 should have a EGR manifold #340261.

 

[Gary S]

Since it doesn't show up on any lists for cars or trucks, and it doesn't have EGR, consider that it could possibly be from an industrial application like irrigation pump motors.