What CC dome for pump gas??

[MX450]

Right now ive got a 19cc dome in my cool head and i have to run race gas which i cannot afford. What cc dome do i need for pump, like 20 or 21? And also does anyone know of any place that i could buy them from?
thanks

[deathman53]

try a stock trx gasket, I got away with using pump gas on a 18cc dome and stock trx gasket. Otherwise go with a 21cc dome.

[custom R]

Dennis Kirk sells the domes for a cool head I think a 21 cc dome is the lowest you would want to run pump gas with from what I heard I run a 23cc dome with the stock gasket and 93 octane pump gas

[Eddiesanders250]

i thought the cool design heads were o ring not a gasket....
maybe im wrong

[danbobsR]

I got a 21 cc dome brand new in the package 40 shipped and you can get it I got a couple of new orings as well you can have Best I know coolhead come either oring or for a stock gasket

[MX450]

danbob pmed you