there are 3 K frames for the Chall / Cuda ,
/6
All V8
Hemi
the Hemi had a different mount system to clear the #1 & 2 exhaust port as the port points nearly straight down & the header or manifold sit under the head
the pic looks like a Hemi k to me
the other option is to use the Schumaker mounts which will mount the Hemi to the V8 K & clear the manifold