Well my fabo followers ............ My 273 blew up , it cam up with a rod know the other day and I have it all ripped apart already. noise was coming for #5 rod 'spun bearing ", but once I tore into the engine, every bearing was scored and more bearings were spun so bad they looked like tin foil. probally revved too high at rpm 6400 or oiling issues , oil light never came on and it does work , so it had oil , could be alot of things . It's all water under the bridge at this point in time. I have another good 273 crank, rods 10/10 and pistons read to go to the machine shop for clean up and start assembly.