Well I finally completed the engine swap and fired up the old-school 347. A little more work than I anticipated. After heat cycling the engine a few times and listening to the normal sounds of metal expanding and contracting I developed a concern that I want some input on. The engine has 2 custom solid steel motor mounts the and tranny also has a custom steel mount, all of which are grossly overbuilt as only I can. My question: is this too rigid? Do I need to account for heat related expansion and contraction? I could put a nylon or rubber spacer and back off on the mounting bolt torque at the tranny mount. Is this a valid concern or me being paranoid? FMR