[kinglenario]

Thanks for the Input guys. the car is at the experts now...

i did not spill coolant on the mani as i just got the car, but yeah that was the first thing i thought. how did all this coolant pool up in there.

it looks like the whole area where the piston broke is black, not like a fresh break. could this piston land have already been partially broken? the piston does not at all look like it was running too lean does it? none of that white coloration that lean pistons get.