intake hardware

Its maybe rare because its an oem part. You can just as easily use a 3/4 " piece of schedule 40 pipe from the hardware store, (Steel water pipe). The thread in the manifold is 3/4 NPT.

Cut off a piece about 1.25 " long including the threads and install it with some teflon tape or pipe dope on the threads. I did this before and it works fine.