STANDARD R-3 R-4 CAST IRON HEADERSOptional on R-1 & R-2 Cast Iron, Standard, Optional on R-1 & R-2. Improves performance and increases fuel economy on all V8 equipped Studebaker. ModelAVANTI Year1963-1964 Item#801092 Info/SpecsPDF Core Charge$0.00 Price$395.00PAIR QtyAdd