Have you spoken with Pat Ottis or MPI? Maranello Classic parts shows a price for new heads on line. Also there is more than one 330 motor so you'll need to be specific.
Thanks. I believe my parts department have checked with them already but I will confirm . Its for a 1966 330 2+2 I think the 365 2+2 heads could be the same
about 2 or 3 years ago in cologne ( germany: köln ) there has been a tuning exhibition. there I have seen an engine block for a 250, so as it came out of the moulding. beside an other block already finished machined. they do nearly all they told me. unfortunatly I´m just in thailand escaping the german wintertime. but at home I have the adress. they are located in italy may be you google a little
Went through this for years. My advice. First see why they want or need cylinder heads. Head leak, broken, warped, etc? If you get heads, like the others say, they may not be correct. Also, make sure the metal is the same era as it was produced as classiche can fail it for that. Again, been through that. My advice is contact Modena Motori in Italy. Talk to Luca Amadei. They did my job. They'll use your heads to recast and make perfect. Hope this helps.
Last I knew, these folks were recasting those heads: Modena Motori in Italy Our last search about 10 years back turned up nothing...