[bigdaddy4x4]

Originally Posted by AussieinNC

This sounds a lot like a missing or defective oil gallery dog bone...the factory ones are made of plastic and sometimes fail, resulting in oil bypassing the filtering process and upsetting the oil flow throughout the engine.

The dog bone is located in the main oil gallery, drivers side of the engine, accessible under the rear main seal retainer....

See link for a video explaining its role....

https://www.youtube.com/watch?v=V7p0h2VwGP0

yes i removed the old one and it was good put in the new one no change in oil psi got the block at machine shop to get new cam bearings they still looked good but i wont know until i put it back together going back with a new btr camshaft and stock sbc roller lifters and stock beehive .560 valve springs