I am working on a 1984 Oldsmobile regency brougham, and have a 1973 Granville donor car with a 455. I would really like to swap my 305 for this 455 but I don't know how much if any alterations will need to be done. New to this and would appreciate all the input I can get so I can be ready to tackle this project.
Thank you in advance
Thank you in advance