Appears to be a matched set, Aluminum Bellhousing, Fork and Flywheel. BOP face pattern on bellhousing, starter pocket on passenger side. Flywheel has part # 3789733 (last digit may be an 8) Date code on flywheel is K 13 7. (Nov 13 1967) Was told it was from a 455 motor, but am not positive. Bellhousing is good, but it needs heli coils. Email for pics. Dave Las Cruces NM newmexguyus@yahoo.com 505-301-4712