Two chronic problems in this era of tired 5.0s show here-wasted engine mounts and leaking oil-level senders. New engine mounts are absolutely mandatory with a crate engine. Urethane mounts are likely best as they are extremely durable and offer a minimal increase in NVH. The obvious oil washing from the oil-level sender is one issue you won't have with the X302 crate engine, because its oil pan doesn't have the sender or a hole to put it in. You can simply tape off the electrical leads to this sender and remember to check the dipstick occasionally.