Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Cylinder diameter VS. piston diameter
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Old 01-30-2010, 08:32 AM
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In a marine app running ~70* coolant you need more piston to bore clearance(~.005 with 2618 pistons) due to the cool temp coolant keeping the cyl diameter from increasing.
Ayuh,... Not to argue, but only to clarify,...

In marine applications, the T-Stat is either 140 for Saltwater raw water cooled systems,...
160 for freshwater raw water cooled systems,...
180 for closed cooling antifreeze filled systems...

Even in late season 35 lake water, my motor runs at a steady 160...
Same as in the heat of summer in 75 water...
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