I was told that the US heads have a better Exhaust than the aussie one,s? coolent was one of the big things so i,m told, but it does make sence Us heads used coolent as aussie ones didnt untill XD??? any Imformation would be great? What do you think Cheers. XELR8
1970 to 1974 they used coolent <us heads In AUST they didnt use Coolent Till the XD (20 or 30 years of water will make a hell of a difference?)(they did the clevo for 5 years we did the clevo for 10+years? but didnt use coolent till the XD as they used coolent with all off there clevo,s??? Cheers XELR8
Have you ever heard of (water corrision) thats why they use Coolent! Isnt no were near as bad as plane water? thats the only way I can put it cheers XELR8
There is really no such thing as coolant i beleive. There is "rust inhibitor" and "anti freeze" for low temp areas/countries. The rest is up to you to maintain a good running temp with effecient radiator, water flow and airflow.