i removed starter locked the flywheel cams where locked in to place turned it over by hand a couple of times went to start it and all i get is a like a banging sound through the airboxAre you sure you got the timing right?
Hope soSounds like you have a bent valve or two, people have just replaced the head/s and gotten away with it, sounds like you might be an ideal candidate as failure happed at a standstill.