I am looking into buying a pro design cool head for my 06 Banshee but on the pro design website there are some things i don't understand. What do the cc's and mm's mean when buying a cool head and what is the dome and what size do i need. Is there some specific kind i need for my banshee, i only have pipes on it right now. I'm new to this so some help would be appreciated because i want to make sure i buy the right thing. How do you guys feel about Noss Machine cool headz? Thank you!!

 

i just bought a pro design for myself i run 21cc domes only because i wanna still run pump gas. I heard alot of good things about NOSS heads. Go over to bansheehq.com they have way more knowledge than over here

 

That site is great but whenever i post a question i never get a response.

 

the domes in the head change the squish and compression! The lower dome number the more compression! Altitude also plays a role in it as well. Like in Omaha Ne. (i dont know elevation off hand) if you run the 21cc domes you run pump gas but put in a 18cc dome and you will need race fuel! If you go with the smaller dome and race fuel..... i would suggest using an aftermarket piston. I have seen stock pistons break when using smaller domes! Hope this helps!

 

Hey man thank you, this did help alot. I appreciate you taking the time to explain this to me.