The headers I ordered have arrived, they are intended for a late model four weel drive Chevy truck. They fit like a glove, with literally not much room at all to spare. I am pretty pleased with the way they fit, though I wish they had typical 3″ collectors, though if they were such equipped they might not actually fit. They are intended as direct replacements for the factory restrictive manifolds and as such have a 2″ collector. Which despite not being optimal, will be sufficient for now as this engine is mostly stock. However, when the new engine is installed, these will be replaced with a custom built set using 1 7/8″ primaries and 3.5″ collectors.
More parts have arrived today. This will get me almost ready to fire the engine for the first time. I still need to change the engine harness and swap over to all weatherpack style connections as well as wire up the factory gauges and remote coil HEI ignition system. It won’t be long now.