I used Sanderson headers on my 273 and moved them over to my 408. Mine was modified for column shifter but should fit "out of the box" for manual/floor shift cars
Here are some pictures of the installation on the 273
66 Barracuda header and exhaust upgrade
Passenger header droped in on the 408. I included some pictures of the mock-up during the motor installation. For the additional room, I converted it to manual steering, and eventually, I will change to a manual shift column for hopefully more space.
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