Jeeesh, save ya some coin on building out your DS650 heads wish I knew about them then, be good for lifts under .435
Valve Springs
http://cgi.ebay.com/ebaymotors...em?_trksid=p1638.m118

Valves
http://cgi.ebay.com/ebaymotors...tem?_trksid=p1638.m118

 

Isn't this that Gal in AZ who sells JE Cast Iron 720 inserts on Ebay? Interesting, but rather stick with original Rotax designs of aluminum inserts.

Too bad more specs are not given with these cylinder head parts. Those seem like the best prices I've seen next to what shop owners can buy for, but this is an unknown area for me. Most of you guys seem like you have monster-drag atvs, so you are way ahead of me.

The cylinder head will be a key area in my po' gal DS650 special. Any head component information would be appreciated. And thanks a bunch for this good-for-the-money find! Just worried they may be heavier racing duty than I'm looking for in my close-to-stock DS650. [img]i/expressions/face-icon-small-confused.gif[/img]