Originally Posted by
keavze
oops

so the engine can be started and run; any damages done?
No physical damages were done just by looking at it. But I mentioned earlier when you break-in an engine you are lapping the piston to the sleeve. If you for some reason rotate the piston this precise fitting is lost. You are re-lapping the piston to a already worn cylinder. The only thing I notice is the last time I ran this engine during a qualifier it came off the track at 280 Plus degrees and the idle was thru the roof( this was after I placed the piston back the correct way). I believe the engine is loosing compression once the engine get's up to race temp. I will give it another shoot during my club's test and tune day. If it's does the samething then off to the round file.
Pass you soon...