55-56 GMC Exhaust
Looked at a 55-57 GMC Truck and with that Pontiac V-8 under the hood, I would bet it was a runner in the day. So to those in the know, were headers part of the factory assembly? They look factory and nicely bent tubes for clearance. Never have seen one before. It has a 4sp truck tranny and 2 barrel carb.
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