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Old 09-22-2015, 10:52 AM   #14
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Join Date: Oct 2007
Posts: 18,235
Usually engines are over sized as car or farm conversions are far less expensive for the boat assembler than an industrial style engine.

They seem oversized as they are rated at peak, short term power ,not 24/7 power.

The rule of thumb 3 cubic inches for each HP at the normal cruise setting works for simple 4 stroke non electric injection ,no turbo, no inter cooler engines .
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