[nutron]

I kept the piston, it's in the back of the car but I'm abroad for another three weeks. The pistons had buckets in the top and all the edge and the flat top surfaces showed signs of melting (suprised it didn't sieze at some point). The crack runs all the way through straight down the centre. I also had trouble with a leaking injector seal on that cylinder so I'm not sure if there was a problem with that cylinder before I started or if that cylinder just draws in my air because of it's placement relative to the intake manifold.