[Christ]

Just because you didn't bend valves doesn't mean it's not an interference engine, by any means. Interference engines literally are defined by the fact that at some point during the engine's operation, the pistons and valves occupy the same area in the engine relative to the block/head mating surface. (Deck)

The engines always have slots machined for the valves to fit into the pistons a bit, making it not highly likely that the pistons would contact the valves hard enough to actually bend them.

If you pull your valve cover, you'll usually be able to identify if the valves have been struck by looking at the tops of them, where the keepers attach. There is almost always damage there if the valve face has been struck, from the valve being pushed back up against the cam.

It's been pretty commonly accepted that newer engines are just basically all called interference, because the term is (as it was explained to me) relative to the deck, and not whether parts could actually come in contact with each other.