1 3/4" headers

215 CI all aluminum Olds V8 in 66 Datsun truck, Saginaw 4 speed. Built a set of Tri Y headers, not a MIG welder or tubing notcher to be found. We weren't even out of our teens yet. We did have a header flange kit for the motor, from there it was numerous 90* and 180* bends from JC Whitney, a torch, double handful of welding rod. Body lift kit before they were all the rage. Built the new firewall out of fiberglass. We had waaaayyy too much fun building that truck. Didn't weigh nuthin, stop light to stop light it was a kick in the ***, out in the desert it didn't do badly either. But the things we learned in the process. :lol: