904 to 833 questions

You'll need a floor shift hump and a manual trans front console plate. All the small block cranks I've seen have been drilled deep enough but not all of them are machined to accept a pilot bushing. You can have the crank or bushing machined to work or just use
a magnum pilot BEARING which will fit right into the end of the crank register where a converter button would go. Not knowing which vehicle the 4 speed parts came from or which vehicle they're going to be installed, there is no way to know what else you will need.