Worth mentioning yes, but I figured that was understood and part of the engine moving parts. The switching of direction is the valve springs job. Not the reciprocating assemblies job, which is where a lot of the power loss is. With precise & efficient valve events, the engine runs peak. Make it easier to open, less energy is wasted in muscling the valve up. There is zero effort by the rotating assembly in closing the valve.
All in all, this practice is a good one to follow. Cost is another issue. I’m not according g a super light weight crank in a grocery getter but that would be interesting none the less. LOL! Grand-ma’s 318 takes down a Hellcat in a chase for the last gallon of milk & eggs.
