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smogger · 06-22-2004, 05:10 PM

According to this casting number, 411783 these heads were made till 1976 for 455s. Were these heads ever made with the air rail holes? Are there any other types of heads with air rail holes that will bolt on to my newly discovered 455?

06-22-2004, 05:10 PM	#1 (permalink)
smogger Junior Member Join Date: Jun 2004 Posts: 8	According to this casting number, 411783 these heads were made till 1976 for 455s. Were these heads ever made with the air rail holes? Are there any other types of heads with air rail holes that will bolt on to my newly discovered 455?