You must be getting oldtimers Larry because you made the same comment 3 years ago about this same topic. The Stovebolts and GMC engines require you to bolt the bellhousing to the block first before you can bolt the flexplate or flywheel to the engines. So bolting the flexplate or flywheel to these engines first would be a waste of energy to only remove them again to install the bellhousing. The Pontiac is the same design as well.
