V8 k member?

Hello gentlemen! Finally got around to pulling the engine and transmission out of my 71 duster. last piece I'm stealing for my 69 valiant,so I can sell the duster. The motor mounts would not line up as installing into valiant. It dropped right in the duster, the guy I bought the duster from told me it's a v6 k member so I bought v6 adapter mounts. I plan on buying a qa1 k member so I wasn't really worried but it kept bugging me. So today after work I started taking the power steering box out because that's the only difference from the duster I could think of. Did not make a difference so can anyone tell me how I could tell if it's a v8 k member? Is it normal for the welds to be real sloppy from the factory? Was there such thing as people fabricating v6 k members to fit v8s?

20230328_182926.jpg

20230328_182326.jpg

20230328_182015.jpg

20230328_182008.jpg

Snapchat-70658886.jpg