Luis, the headers from Langdons (about $275.) are cast iron and are relatively short and will have a long life to them. I believe that Clifford has a shorty header (have a set on my '54 but they were on there when I bought the car) Ebay is also a good place for headers as they show up on there quite a bit. How did you make out with the mounts for the Nova? Is the motor mounted yet?