67/68/69 cuda dilemma
I went ahead and gun brushed out all the oil passages after doing 3 minor oiling mods my machinest friend recommended to do with the oil filter feed area, and on the rear main cap where the oil pump meets. I used some MEK and my brushes. I scrubbed and dipped the brushes to rinse them until the MEK got dirty, then dumped it, and refilled the bucket, and I'd gun brush the same holes and dip and rinse the brush until I could do this and get nothing but clean liquid in the bucket. It's going back to the machinest for decking, and the cam bearing install. He said he is going to gun brush and blow out all the oil holes again after he is done. I will still do it again when it returns home for final assembly. I also removed and smoothed out some more areas of casting flash on the outside of the block. Second 2 last pic was a spot before I cleaned the casting up.
I went ahead and gun brushed out all the oil passages after doing 3 minor oiling mods my machinest friend recommended to do with the oil filter feed area, and on the rear main cap where the oil pump meets. I used some MEK and my brushes. I scrubbed and dipped the brushes to rinse them until the MEK got dirty, then dumped it, and refilled the bucket, and I'd gun brush the same holes and dip and rinse the brush until I could do this and get nothing but clean liquid in the bucket. It's going back to the machinest for decking, and the cam bearing install. He said he is going to gun brush and blow out all the oil holes again after he is done. I will still do it again when it returns home for final assembly. I also removed and smoothed out some more areas of casting flash on the outside of the block. Second 2 last pic was a spot before I cleaned the casting up.