Think main diff is where they curve up between engine and cowl panel vs the A and B bodies. After not finding a 1st gen style, ended up get'n a Lokar flex tube model and mounted to cowl pnl. Since then got th400's out of a 68 GTO and 69 GP. Will ck how close they are 2nite.
Thanks Region, if it were just for a conversion or something I would go the Lokar route myself but its for a T/A so I gotta put in the work........