Thanks for the compliments guys. Thats Navy welding there!
Morris, that is a tube that goes in all the Las vegas built 4000 cars, including the aluminum ones. It is called a "cowl hoop connector". It hides in the rocker, and is not seen on a completed car.
Mloy, the cowl hoop on the 289 and 427 is dimensionally the same other than the areas you mentioned. I believe the centerline of the top tube to bottom tube is 24", but that is going off of memory. The 289 cowl hoop is 1/2" above the tubes, thats because the 289 floor rides 1/2" above the rails.
