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From: Hank Dozier
Remote Name: 188.8.131.52
Date: August 18, 2002
If it is stock and in good condition, about 5500 RPM. This engine has a 3.8" stroke, and past that point you probably will overspeed the rod journals and boil the oil off due to insufficient supply pressure from your pump. They CAN be modified to rev higher, but as usual, it costs $$$$.