The Damper Dance
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There are two different TDC marks on small-block dampers, depending on the age of the damper. Pre-1969 dampers (top) place the TDC mark at 2 degrees before the keyway, while 1969-and-later dampers (bottom) place the TDC mark at 10 degrees before the keyway. Also note the abused face of the top damper. View Related Article
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