Originally posted by Limey
I've tried a different gauge with the same results.

The block is a stock 400 ci (Casting '511), and I pretty sure the oil gallery plug under the rear main is in place, since when bearings failed all the debris was caught up in the filter, and the rest of the motor was clean. If the plug wasn't fitted, then the debris would bypass the filter and be all over the motor.

Anyone got any ideas?

Limey
I disagree. Not all the debri was caught up in the filter. I would be concerned about cam bearings. If you wiped the bottomend from oil starvation, why do you think the cam bearings were not treated to the same thing? Also did you clean the oil galleries out? I mean run a brush and soap through them and get them clean? A very small partical of dirt can distroy a bearing very quickly. Just my opi.