You can save yourself a headache if you run a fine wire through your old pipe all the way through, and hang onto the end of the wire as you pull the pipe out of the block. You can then use the wire (which is now running through the block) to guide the new pipe as you push it through the block.
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission