Here is one way to remove old headers

Polished metal exhaust manifold with four pipes merging into two, resting on a black surface Polished stainless steel exhaust crossover or downpipe on a workbench Polished exhaust manifold with a visible brand name 1978 Ford Bronco photo Polished stainless shorty headers with copper gasket and flanges on a workbench 1978 Ford Bronco photo 1978 Ford Bronco photo 1978 Ford Bronco photo 1978 Ford Bronco photo Polished tube headers, CAGE dual-shock hoop with white James Duff shocks and Deaver coil spring Exhaust pipe with Sanderson logo, bolted to a flange Exhaust pipe connection with shiny metal flange and bolts Close-up of a shiny new exhaust pipe section clamped to an older exhaust system, with part of a transmission v Underside view of a transfer case and driveline on a blue-painted chassis Close-up of exhaust manifold connection with shiny metal pipes and bolts. Some rusty metal frame parts are vis 1978 Ford Bronco photo 46photos in this albumView all