Hi. I had my 360 rebuilt to 0 TSMOH a year ago. It wasn't pickled for storage as I expected to refit it within a couple of months of getting it back but for various reasons the date kept pushing back. It was test run for an hour but since then has had no oil in it. Every opening including carb inlet and exhaust ports has either plastic caps or layers of tape so here are no open ways into the engine. I have sprayed each pot with LPS 2 every week and turned the engine and I see no evidence of rust in the bores which I checked with a bore scope through the plug holes. So, what if anything could be wrong internally? Please don't just say strip it and check and please don't just speculate, I'm after some real information about what could be wrong and why so I can make a decision on what to do. Cheers, Gary.