Quote:
Originally Posted by ConnClark
The big advantage of cast iron is less heat loss to the coolant as it doesn't conduct heat as well as aluminum. This keeps more heat in the combustion gasses and allows you to extract more power. The down side is it makes it harder to pass Nox emissions.
|
yes, but the combustion process happens with piston up, not much exposed cylinder wall, plus most aluminum blocks got steel liners .
you think it makes that much difference with still aluminum head in place ?