Originally Posted by cdminter59
If it were me and I had a 3970010 350 block that is a standard bore that needed to be bored .030 or .040 I would not have the sonic test done. Now if the block has been bored and I needed to have it bored again I would have it done. If I had a standard bore block and wanted it bored .060 I would have the test done.
Now I have a 350 with that casting number. Your saying with a standard bore I dont have to sonic test, I can achieve those numbers.