Not that this means anything but I have a date matching upper end swap. The heads are coded G 8 0 and G 1 0. I bought the intake manifold along with the heads. It's casting number is 3965577 and date coded G 4 0. As I said, it doesn't mean much dollar-wise, it's just cool to know.
In other news my heater core hose restrictor valve came in from Amazon yesterday. Nothing fancy, just a 5/8" tube that has a 1/4" restriction in the middle of it. This is to avoid blowing up the heater core since I am doing away with the OEM hose assembly which is restricted internally at the manifold.
I am going to tank one of the heads at work tonight and do the other one tomorrow. Get some of that 47 year old grime off of them.
That's all I got today.
Picture of the restrictor valve.
You must be registered for see images attach
Pic of the manifold w/ Q-jet carb (which I probably will not be using).
You must be registered for see images attach