new head cover? what does it do?

[marcusb]

well i was wondering what a new head cover does? like with 21 cc domes or other sizes but what are some pros and cons of doing so ??? what do you all need to get to use a new head cover? can you use one on a stock motor? i have a .020 over banshee with t6 exhaust and a pro design air filter. stock rods. could i use a head cover on this shee? lemme know what you guys think

[Hazzard Racing Customs]

It's just a new head It helps with cooling and yes you can use it on a stock motor

[trickedcarbine]

A new HEAD typically allows you to tailor the domes (combustion chamber) to your specific needs. It will give you a bump in compression and if they are done by a knowledgable builder they will help out with a more efficient combustion of the fuel and air. You can have domes cut for your desired fuel whether it is pump fuel, race gas, or Alky. Even though a lot of guys call them cool heads, they don't actually cool very much. A few heads out there are designed for better water flow, but even then not that much cooler.