Any reason these headers won't fit?

[chevy_mike]

So I was looking around at header and came across these on Summit. They are Headman's 69620 and are listed for a '61-'65 C10 but in the foot notes, it says this,

"C - For 1964-74 vehicles without A.I.R. systems, are considered as O.E.M. replacement parts when existing emission controls are not removed from vehicle."




I really like how this look and it seems they would have great plug/wire clearance. Has anyone tried these and if so, any problems? BTW, I am refering to 2WD trucks, since 4x4's have different crossmembers.

Thanks guys.