I have slowly moved along and tore down to the piston today. Here is the picture that tells the #1 cylinder story (the engine is upside down)
The head took a beating but obviously the valve pretty much stayed sideways in the valve seat during the 80 mile drive. The nikasil cylinder has some dents - to the trash I suppose.
The strange thing is there is some impact damage in the #5 combustion chamber. The only reasonable path for piston fragments I can imagine would be up and across the CIS system propelled by the back flow from #2 &3 through the exhaust valve. Is this possible???
My 'rescued' engine received all the engine externals, was installed, started and smoked heavily
- especially on acceleration. I'm presuming ring wear. Perhaps that engine will donate some cylinders to mate with JE pistons although with the ring wear the likelihood would be that the cylinders are out of tolerances. What should I do?? I had been reviewing the 9.5/1 compression JE pistons with the 964 cam regrind as the build option. But I may have run out of usable cylinders