8k rpm ...

Ok, don't beat me up on this one. No I don't race, I know it's completely impractical .... thinking of rebuilding the engine in my 70 340 swinger in the near future. Will be putting the #'s matching engine in the corner of the garage, I have a complete stock bore 71 340 that I'd build. My problem, I want 8k rpm. Want to build a fun, high revving engine for around town pleasure. Not sure why 8k stands out to me but it just does . My question is, how attainable is this and how much work are we talking about so I don't worry about sending shrapnel outside the engine block everytime I get on it ?

How much power are you wanting?