Replace those worn, loose hinges with new ones. These reproduction hinges are designed to have the look, function and fit of the originals. Danchuk # 12223 will work on any 1957 classic Chevy. Sold as a pair.
Note: We recommend you lubricate these just after installing them but remember; one of the things that keeps your hood up is the friction between the metal at the rivets on the hinges. After lubricating with a product like WD-40 move the hood up and down and then shoot a little brake cleaner at the pivot points to flush the lube from the friction points. We also recommend replacing the hood springs.
Danchuk has the largest selection of quality 55, 56, 57 parts for your classic Chevy project.