Re: How to service the heads with no parts??
			 
			 
			
		
		
		
			
			"How would I have the block checked for flatness if still in the vehicle?" 
 
A good old-school mechanic might have a better answer here, but.... 
A good solid straight-edge laid on the block face with some thin feeler gauges and a good light source may prove fruitful in this endeavor. 
This kind of special tool a good should have- it has to be flat and rigid- we're not talking about a steel ruler here.
		 
		
		
		
		
		
		
			
				__________________ 
				Jim Jantzen 
Tempe AZ 
 
63 GMC K1000 Sub restored original 
63 GMC C1000 Sub original 
65 GMC C1000 Sub OEM modified 
72 GMC 1500 Super Custom SWB original
			 
		
		
		
		
		
	
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