Flywheel Engineering
			 
			 
			
		
		
		
			
			What material are stock pickup flywheels made of? Mild cast steel, I presume? 
 
The reason I ask is for my 478 stroker build - the 478 crank has 8 bolts whereas the 3.58" cranks only used 6 to hold the flywheel on. I have a big enough lathe that building a flywheel from scratch will be no problem. The question is, what do I build it from? 
 
If I just have the local steel supply shop torch me a piece out of a hot rolled flat of typical mild steel, will it be good enough? Or do I need a better grade of steel if I am going to be turning 5K RPM? 
 
560 cubic inches here I come...
		 
		
		
		
		
		
		
		
		
	
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