Bigger K Member for BB Swap?

Putting together a little parts list to finally get started on my 66 Valiant project and after reading a ton of posts in various forums it seems like the debate still rages on. Do I need to swap K-members if I am putting a BB into my Valiant or will some Schumacher BB spool mounts work just fine? Thanks y'all!

Several different ways to do it. I have a DC type K frame that came with my Duster. I'm not going to use it since I switched to motor plate so I'll probably sell this one at the next swap meet. The DC K frame is a nice way to go for the later cars since it looks stock, but some guys prefer the motor plate look. I'm not a huge fan of the conversion mounts since they never seem to line up quite right for me. I think the biggest problem with the early cars is the exhaust system so good luck there.
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