New -22- castings are available. They come with seats and guides but not much else. Transfer hardware from your old head. You might need a new valve or two. Check with Phil through the Fastlane or Buy Parts link above. Sometimes you find them on eBay or local ads.

Someone said there are lower priced new castings from Spain. I haven't heard of anyone buying or using such a casting.

You can get another -14- and take a chance. I'm not aware that anyone has found cracking issues with -17- or higher castings so there's a good market for these used heads. You have to watch that you don't get the head off a normally aspirated 603. 17, 20 and 22 are definitely turbo castings, and the most commonly available.

Check the archives for gsxr's comments on fitting a new/er head. You have the choice of trimming your prechambers to fit or getting later style prechambers and injectors. The best deal is probably a used -17- head complete with injectors.

Sixto
93 300SD 3.0 - comatose