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| GMC V6 and V12 Engines Engine repair and rebuilding | 
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			Anybody know the flywheel bolt circle diameter on a 401 crank. thx
		 
		
		
		
		
		
		
		
		
	
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			#2  
			
			
			
			
			
		 
		
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			Hello Tommr; 
		
		
		
		
		
		
			I measured four inches (4") bolt center to center. 
				__________________ 
		
		
		
		
		
	
	1961 GMC Suburban 305A Overdrive 1962 GMC Utility 305D  | 
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			#3  
			
			
			
			
			
		 
		
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			thanks for checking that. its a big help.
		 
		
		
		
		
		
		
		
		
	
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