Well, I had all the "valve lash" nuts/bolt loose. So there shouldnÆt have been much force coming from the valves.

And I had all the rocker arm assembly nuts tightened to spec 16ftlb I think. I didnÆt have the two bolts (closest to the front), on at all. You can see it in the pic. Not sure if that made a difference.

But I guess, maybe I should try it again???

Steve C