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pro design cool head??
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Posted by: j450rking

i see the pro design cool heads on rockymountain but i don't know much about them. what do they help exactly?

Posted by: pimpt250r

they say improved cooling and you can adjust your compression

Posted by: j450rking

i wounder how you adjust the comp?

Posted by: CorvetteZ06

they have increased cooling, and you can change different size domes inside the head to adjust your compression.

Posted by: peeping TOM

you know your in the 250r forum? right ..

Posted by: j450rking

oh ok i get it. so were it says 18cc thats to do with comp. so how can you tell what your comp is going to be when they tell you 18cc

Posted by: j450rking

quote:
Originally posted by peeping TOM
you know your in the 250r forum? right ..

yeah i'm asking about a head that go's on a 250r..

Posted by: j450rking

so can i use pump gas with the 18cc dome? i going to get a cometic full engine gasket kit. do they come with a thicker head gasket?

Posted by: BKex

usually with a 18 you would run race gas...you would want more like a 21 for pump

Posted by: j450rking

oh ok so the larger the cc's the lower the comp for the dome?

Posted by: EXtreme-

quote:
Originally posted by j450rking
oh ok so the larger the cc's the lower the comp for the dome?

yes. 21cc/93 octane

Posted by: j450rking

ok thanks alot guys!! i think thats all i will have to know