The all aluminum GM 2090 radiator is an exact fit, OEM replacement for 1969 Chevrolet Nova\’s. Manufactured in the USA using controlled atmosphere brazing, the epoxy-free core measures 20.75 inches from header to header, 17.85 inches from side to side, and 2.25 inches thick. Aluminum tanks are TIG welded to the core and have a 1.50 inch inlet and a 1.75 inch outlet. Each unit is individually tested prior to shipping and guaranteed to be 100% leak free.