YES, That is no problem, it will bolt right up.
Yes, they have the same bolt pattern.
Yes, as long as the transmission has the Chevy bolt pattern.
Yes, if they were built with the standard Chevy bolt pattern.
It will if the trans has Chevy bolt pattern.
Yes it will bolt right up.
A 400 will bolt up to either a 305 or a v6. Whichever you prefer.
Yes, the Turbo 400 will bolt up to the 305. Use the original Turbo 400 torque converter and flex plate unless the 305 flex plate has dual bolt pattern to except the 400 converter.
yes
any Buick, olds or Pontiac turbo 350, turbo 400 or any overdrive tranny should bolt up to your engine.
yes
sure, as long as it's a Chevy turbo 400 and not a Buick, Pontiac or olds 400 it will bolt right up.