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				12-01-2007, 02:39 PM
			
			
			
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			|  | Half-Ass Member   
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					Join Date: Jun 2005 Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum 
						Posts: 22,025
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	Quote: 
	
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					Originally Posted by Tom Kirkham
					
				 That is a petcock for draining the coolant out of the block.  |  And very handy to have as well, I might add.  The rest of us have to turn our blocks upside-down and shake them to get the coolant out.  |