Used to demo derby
Could take up to 10 minutes for a new yorker 440 to seize after the radiator was punctured. After cooling, most would run again. Then we rebuilt and ran them like we stole them.
Some heads would crack. Your 30 seconds is nothing to worry about.
Most of the time the water pump seal was good after rebuild
Do they still have demo derbys?
Rod
Could take up to 10 minutes for a new yorker 440 to seize after the radiator was punctured. After cooling, most would run again. Then we rebuilt and ran them like we stole them.
Some heads would crack. Your 30 seconds is nothing to worry about.
Most of the time the water pump seal was good after rebuild
Do they still have demo derbys?
Rod
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