1 3/4 headers

[chappys4life]

Right now I have a 79 suburban and looking to add headers. Doesnt have to be long tube I am down with shorties. Looking to stay 1 3/4 tubes but everything I find is 1 5/8.

My burb is lowered some but nothing crazy (2.5 drop spindles), I know on my 70 c1500 everyone said a body chevelle headers as they tuck better for a lower truck. Do those fit the 73 up better as well? I am getting ready to install the chevelle headers soon on my 70 had to get a different trans crossmember and its at the powder coater. I am happy to do the same to my burb if they fit the best but wasnt sure with the 73 up differences.

Attaching a pic of the burb as well