they might look fine mate but you will definately need to check them still, ive had new mounts on for 2 months and were nackered again yet still looking fairly new, just give the engine a good pull about in the bay, the only noise you should hear is yourself struggling to pull it about and the possible handbrake/suspension creak where you are trying to pull it about so much, any slight sound of nocking is more then likely going to be engine mount or gearbox mount failing that start looking at driveshaft bearings and wheel hub bearings or suspension top mounts