What did this come off?

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Professor Fate said:
That's not an EGR blockoff, it's a cover for the choke well. EGR would be on the driver's side of the manifold.
Click to expand...
And the cover really isn't needed. They are not serving any purpose in covering it other than capturing heat.
 
toolmanmike said:
And the cover really isn't needed. They are not serving any purpose in covering it other than capturing heat.
Click to expand...
Well, some of them (not sure of the year changeover) had a choke well that was open to the exhaust crossover, and you had to use those little metal "bathtub" inserts with a gasket to seal them up.
They were a PITA, as the gaskets would burn out or the insert would get a rust hole and you'd be pulling your hair out trying to figure out where that da** exhaust leak was coming from... who thinks to look next to the carb?
1722352322763.png

At some point they enclosed the choke well, and the insert was no longer needed. And eventually they went to the late "open sided" choke.
1722352794861.png
 
Professor Fate said:
Well, some of them (not sure of the year changeover) had a choke well that was open to the exhaust crossover, and you had to use those little metal "bathtub" inserts with a gasket to seal them up.
They were a PITA, as the gaskets would burn out or the insert would get a rust hole and you'd be pulling your hair out trying to figure out where that da** exhaust leak was coming from... who thinks to look next to the carb?
View attachment 1716282808
At some point they enclosed the choke well, and the insert was no longer needed. And eventually they went to the late "open sided" choke.
View attachment 1716282811
Click to expand...
I never had a leak apparently and my cars were long before electric chokes.
 
Get a side profile look at the manifold. Some Marine and Industrial applications, have the carb sitting at a different angle than automotive apps.
 
Professor Fate said:
Well, some of them (not sure of the year changeover) had a choke well that was open to the exhaust crossover, and you had to use those little metal "bathtub" inserts with a gasket to seal them up.
They were a PITA, as the gaskets would burn out or the insert would get a rust hole and you'd be pulling your hair out trying to figure out where that da** exhaust leak was coming from... who thinks to look next to the carb?
View attachment 1716282808
At some point they enclosed the choke well, and the insert was no longer needed. And eventually they went to the late "open sided" choke.
View attachment 1716282811
Click to expand...
Yeah, '70-72 had that goofy design....and not just on small blocks. Slants and BB's had them too.
 
How about the '69 slant 6 choke setup? It had that heat tube that ran through the exhaust manifold to a dial choke in the carb. All one year, one motor type stuff.
 
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