Is a 2.8 liter engine a 305?
yes
5.0L is a 305. 5.7L is a 350
yes
yes.
1976
about $2000
Who said it won't ? It will fit right in there with NO problems
Yes, and well.
Oldsmobile used to make a 307 V8, but it has nothing in common with a Chevy V8.
The schematic for an 83 Chevy 305 engine can be found in the service manual. It gives the location of each component and how everything is connected.
yes