Racers chime in #2

When it breaks. LOL
I will do a leak down test at the end of the season to see if there is any concerns.
If all is good, I just back off the rocker shafts to remove the spring pressure.

I don't check the rod or main bearings, other than checking my magnetic oil drain plug & cutting open the oil filter to check for metal.

Now, even if you do inspections, it can still blow up without notice.

I have only lost two engines in 30 years, now mind you these are low 11 second cars.
Stock crank & rods.
Both broke do to failed componets.
The last one (360) had 925 passes on it. 5-seasons of races. the worst cylinder was at 7 percent with a cold engine.
The first race of the season, the first time trial, it ran as fast as it ever had.
When it went thru the lights, it had a Kieth Black (KB107) come apart.
Sure, I would have caught it while doing a tear down inspection, but it never gave me a reason to do it.

The other engine (340) broke the crank behind the thrust.
It also had several seasons on it as well. Never gave a reason to do a teardown.

I do have a freind that does tear down inspection every season or two.
Is there any moral to this story, probably not. LOL
Even so, he still broke a rod that he had looked at before.