Tim Campbell; Morristown, TN:Many people have the Olds 403 engine in their car and would like to upgrade. When you do the research on the Olds 403, you get a very broad range of opinions on the web ...

We've written on these very pages about the untapped potential within the 403 Olds. We've also made a point to state how the one major weakness of this otherwise decent performance block has been ...