I have read about that if the guide isnt reamed straight the head is toast etc. I beleive there is no way to do it freehand hnece that Lisle 59000 tool that noone can find I beleive that trues it up for reaming. In reality I beleive the cost of the tools wouldnt be worth it unless I was to start doing heads as in quite a few sets over time etc. I have a 340 bottom end tahts just about together and a set of 1.88 heads ready to go but really want my set of 2.02's redone. Time to ante up I suppose.
