Adapting a SBC Intake to a SBM

racerdude5 said
Because I need a mechanical fuel injection manifold, which are very uncommon for small block Mopars and if I do happen to find one it will likely be very expensive, Hilborn for SBC is very common.

I was contemplating something the same thing. I finally bought a pair of 4 cyl big bike EFI setups, but haven't done anything with them yet.

I've also tried to find out--and have not--what else might have similar port spacing, EXAMPLE

If the B/RB stuff was "close" or could be port matched, you could buy a B/RB setup and adapt to a DIY side flange/ valley plate. That would not be too hard if the ports were similar. If the pair-to pair spacing is off, you could cut them apart

There are others built this way, I think? some of the Buick/ Ponchos/ Olds, don't remember

Like these

Mopar B/ RB

394 Olds

Poncho