6-pack intake manifolds

Who originally produced the 340 6 pack intake manifolds and were they aluminum or cast steel?

Are there any aftermarket manifolds being made? I looked on Edlebrock’s site and they only have the BB version.

Lastly what were the differences between the big block carburetors in the 6 pack config compared to the small block 340?

Thanks for your reply….

Hi 340 There were cast iron and Edelbrock aluminum intakes for the big block and aluminum only? for the small block. I have the original Small block manifold setup. They were repopped a few years back. Everything sixpack here: The 6 Bbl tips Hope that helps.