289 Cid Engine to 3xx Cid..

[Zedman]

I thought I'd ask this question here rather than the Avanti Trivia page, where there is a discussion going on about Ferrari engines...   Dwight has postulated a bore-out by 80 thou over would have brought the 289 Engine into the 302-ish realm.   My query is - Surely the ability to change the core patterns for the casting of Engine Blocks would have been a viable, economical and realistic way of ensuring an increase in HP as well as a safety margin to ensure overboring would not be compromised by thin walls.   Anybody wanna comment here? 🤷‍♂️