Re: 24:1 vs 50:1 in 64′ vs 65′ OMC engines

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August 28, 2018 at 2:19 am #81919
johng
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    I have had the Exhaust Covers off quite a few late 40’s & 50’s motors OMC & Mercs. Sometimes the Piston Skirts look real nice and sometimes not to nice and others that are galled severely yet still turn over but would not continue to restore without a rebore and O.S. pistons. Due to the age of the motors I will stay with 16:1 no needle bearings & 24:1 with needle brgs. to protect the investments. I don’t care what the engineers say. Just my thoughts.