Russell specialty fuel adapter fittings are the best way to add aluminum hard line to your vehicle. These fuel fittings are precisely manufactured for a quick and easy installation and are offered in a variety of finishes. Danchuk # 14351 will work on any 1955-1957 classic Chevy as well as other vehicles you may have in your collection. -6AN is equivalent to 3/8" hose, thread size is 9/16-18 SAE.
Danchuk has the largest selection of quality 55, 56, 57 parts for your classic Chevy project.