if they do make the heads and the blocks they must be available(in stock ready to ship). i have been waiting 9 months for a 340 block if dart made one i would have had one already. if i had to wait 9 months for heads i would get indy's. I love the fact mopar performance makes speed parts but they are usually made of unobtanium. they need to understand. if the part is at the warehouse and won't take months to get we will buy them!!!!! i probably have more mopar performance parts on my car and in my basement than mopar has at their warehouses.I'm not bashing them i just wish they had the parts in the catalogue at the warehouses so i could buy them!!!