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All of the main bearings have been modified for proper oiling by slotting the feed holes. Oil pressure is excellent on 10W40 Castrol Classic High Zinc break in oil. 35-38 at hot idle, 65-68 at 3000 RPM hot.
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Clark455 April 4, 2023
All of the main bearings have been modified for proper oiling by slotting the feed holes. Oil pressure is excellent on 10W40 Castrol Classic High Zinc break in oil. 35-38 at hot idle, 65-68 at 3000 RPM hot.

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