90 degree adapter leak

Just some info you should know. The blocks are different in later years and take a different adapter. The two gasket surfaces are on the same level on the block on later engines. Early blocks were different Also the early bolts were prone to stretch. If the 4 holes in the side of the bolt are even with each other throw it away. They should be offset . two are closer to the head. This gives the bolt more strength. The bolt in the diagram above shows the holes even. This is a bad design and stretches. I can provide pics if needed