318willrun said Here are the heads that we settled on for the 5.2 Magnum build. THESE COULD HAVE DESTROYED THE ENGINE!! ALWAYS INSPECT "OOTB" HEADS!!! View attachment 1716007944 View attachment 1716007946 And for those that wish to see more than just the photos above, and see how we discovered the heads contaminants, here is the video. Click to expand...