? about that 3.65” crank

@gregcon Whops! You are correct! Any engine spinning 3K is spinning at 3K no matter the bore and stroke combo. I was trying to say something else.

How is this? The shorter stroke engine will rev up faster due to the shorter stroke which equals a quicker turn around time for that revolution, thus producing more power in a seconds time because it can complete a revolution quicker. It has less travel distance. Less distance to travel is quicker.

A short stroke engine should be able to rev higher than a longer stroke engine however, with enough money and proper parts researched and developed ......

Arguing that a short stroke engine can not rev as quick as a long stroke engine is an statement with to many holes in it to have an argument on it.

Your 9K vs 10k argument is based on assumption that spark got weaker?
I’d say that if both engines are at a 500 cid, the longer stroke engine will run out or have a lower output against the shorter stroke engine. Not like power fell off a cliff, but less.