bbc swap in 69 frame

[ColinOpseth]

Hey guys,
I have a '72 shortbed cab and bed on a '69 frame. I've done the front spindle swap already but I want to put a '76 3/4 tone camper special 454/turbo 400 in that truck. Can I use the frame stands/perches and motor mounts from the '76 in that truck?

I'm sure the springs won't be strong enough but that's OK because long-term I am going to bag it anyway. They'll hold up well for now.

My main question surrounds the perches. Which perches will I need to run that 454 in a '69 shortbed frame?

Thanks,
Colin