Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - water pump hole question
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Old 04-02-2012, 04:33 PM
lmsport lmsport is offline
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Hole is normally blocked in racing applications that dont run a thermostat. A 3/8" diameter hole with 15psi of pressure across it will more alot of water, and at peak load cause some temperature differences from bank to bank. There is no need to block it for street use.
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