I don't understand what every one is talking about?? He blew a head gasket and the cylinder filled up with coolant and it hydrauliced a piston, you can't compress liquid, and bent a rod then it wiped out the rod bearing and now it knocks. End of story.
This was the nature of My question w/o leading the witness............If cyl #8 was blown and full when He pulled the head the bearing got hammered & the rod got tweaked.
If your balancer is marked every 90deg. check the accuracy of TDC for that crank throw on #7, if not get a degree wheel & do it, what was going on when the gasket blew?
If it hit hard enuff under load now is the time to get it right, check everything...................
