 
			
				08-28-2014, 08:36 PM
			
			
			
		  
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					Join Date: May 2010 
					Location: Houston, 
						tx 
					Cobra Make, Engine: 2004 Kirkham 427 S/C, Shelby 496C.I. 
					
					
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		It's probably 1F101704 
The 1 is 1991, F is Dearborn plant, 101704 is the consecutive unit number matching the VIN of the car it came from. 
You'll probably find a F1SE-6015-AA also stamped above the starter area, on the right side bellhousing ear of the block will be the exact date code the block was cast. I looked at one today that was 0K20, which translates to 1990 October 20 casting production. 
		
	
		
		
		
		
		
		
		
		
		
	
		
		
	
	
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