I'm thinking of remaking the Ocean Pro 440 & 550 kawa performance heads.
I saved all the patterns and tooling. If your interested drop me an email. ( see below) Or any other vintage head you may be interested in. We made aprox 15 different cylinder heads for KAWA, POLARIS, YAMAHA, SEADOO, ARTIC CAT in various cc volumes. I have the tooling to make all of them.