The dipstick tube will stand a little bending, but it's better to work it out of the hole in the block and re-bend it in a vise. The tube is VERY prone to breaking right at the top surface of the block. I like to use a pair of vise grips, grab the tube VERY gently just above the block surface, and carefully twist/pull it upwards to remove it. One sneaky trick once the tube is out is to melt some wheel weights, pour the tube full of lead, and then melt the lead out after the re-shaping is done. There's less chance of collapsing the tube that way.
Jerry
