Clifford Dual Outlet Headers on a 63

[18CEOD]

I apologize if this has been beat like a dead horse. I have exhausted my form search abilities and google skills.

I've got a question I just cant seem to find a comforting answer too. Will Clifford's Chevy 250/292 Dual Outlet Street Rod Headers fit on my 63 with an IL 292 and a SM420 four speed? I'm sure the 1 through three cylinder section will clear the motor mount but I'm concerned the second half will interfere with the clutch fork and linkage.

I spoke with Larry at Clifford's yesterday and in the course of the conversation he stated they would, but also mentioned if they didn't that all I would have to do is cut the collector and re-weld. ???

I've looked into Tom Lowes split manifolds but with the direction I'm going I would prefer a decent set of Headers.

Any help would be fantastic.