I think we had discussed this a little early on. From watching the video that Jay sent me I told him I thought it was from the Top End and that a rod or main bearing would have sounded a lot more solid. I'm glad they found the issue and your getting the engine back.
You should be getting good at swapping the engine in and out by now.
The struggle is real. I spent plenty of money on the Carolina Machine Engines 283. It's a 1965 283 bored 0.060 with a mid-level performance build with a slightly lopey cam (268H Comp Cams flat tappet). It ran fine for 600 miles and then went back to the machine shop for the noise. So I installed the OTHER 283 I have. It's a 1966 block rebuilt by Jasper years ago but it sat in a trailer on the shipping pallet wrapped in plastic. It's 0.040 over and I swapped the factory cam out for a GK930 cam that Jerry says is a bit nicer than the factory cam.
So I have driven the truck with BOTH ENGINES.
I can't say that there is a noticeable difference in performance.The plan was always THIS . . . . Test each on the run stand and then install the one I liked best. Then sell the other one.
Swapping the Carolina Machine Engines unit back into the truck means another Loooooong weekend of work. What to do, what to do . . . . . .
If I sell the CME engine, I will lose money. (I knew that was a possibility from the start.) If I sell the Jasper engine I will break even on the investment on that Jasper engine.)
