Re: 2 1/8" Header options
The '73-'87 frames are a little different than the '63-'72 frames but IMO not in a way to affect header fitment. I have Hedman 69110 headers on the big block in my '66 Suburban. The only modification I had to make is to trim the top flange of the frame. That does not need to be done on the '68+ frames. With typical truck headers, you may have ground clearance issues since typically they hang down below the bottom of the frame. I don't know if the Lemon's headers hang down as low as Hedmans.
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