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			Dated April of 73 
		
		
		
			1.50" thickness Most likely used on 70-74 LT-1 and Z28 Threaded holes are not buggered Pulley mounting surface has not been beat up with a hammer Mike Munro 518-526-3379 Last edited by hotrods8; 08-24-2025 at 01:37 PM. Reason: Corrected casting number  |