The Edelbrock #1125 heads are rugged, ribbed internally and externally, with a large water capacity and excellent breathing characteristics. Flathead head copper gaskets for 1938-48 use Victor #3036; or Fel-Pro® #7548; or Edelbrock Head Gasket Set #7394; for 1949-53 use Fel-Pro #1055 and Fel-Pro #1056 or Edelbrock Head Gasket Set #7393.