Brood Brothers compatibility with Catachan kits?

[Zephaniah Adriyen]

So, I'm looking into options for a Brood Brothers regiment. I'm leaning Cadian, but that might change if Catachan kits are compatible with the Brood Brothers upgrades. I dunno, I'm looking at stuff.

 

Basic question is, do the Brood Brothers heads swap properly like they do with the Cadian kit?

[Stercus]

I’ve always found Catachan and Cadian heads to be interchangeable, so your brood brothers heads should be able to swap for either of them.