Originally Posted by
carcrusher46
My cooling head bit the dust (seems to be a common problem) - I got a pair of Nova P5 heads but they are too thick in the button area. I gave one to my cousin to get machined down at work, but in case that doesn't work out, is there any other affordable head options out there that are a direct fit?
Sirio and Novarossi have the same bolt pattern, the P5 head should work. I ran a odonnell head on my old sirio motor and a friend runs one on his Werks B5 so I know they work. All sirio based heads will work. Go to Ebay and serch cooling head
http://cgi.ebay.com/TEAM-ORION-21-EN...item27b2a58f03
.99 for this one with 12 hours left it will fit.