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What's this on the intake manifold?

Chief Brody

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What's that triangular plate on the manifold?



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So there is alot to this really, but basically, a quadrajet is a spread bore and the edelbrock you have is a squre bore. THey mount differently hense the adapter between the carb and intake on your setup.

Square bore,

0612hppp_04z+rochester_quadrajet_carburetor+square_bore_carburetor.jpg


Quadrajet/spread bore,

0612hppp_07z+rochester_quadrajet_carburetor+spread_bore_carburetor.jpg


So that intake was desgined for a quadrajet.


Yes in my opinion you shoud get a quadrajet. Not only would it be the original carb for that truck, but they seem to get better MPG than the aftermarket carbs.
 
Yes in my opinion you shoud get a quadrajet. Not only would it be the original carb for that truck, but they seem to get better MPG than the aftermarket carbs.


Where can I get one that's correct for a truck?
 
Heres one for fun,

38.jpg


This thing heats up and pushes the chock rod/plate to deactivate the choke,

49bc599f3b693_95731n.jpg


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You can also get them wherever. You can get them at napa, autozone etc but they are usually not rebuilt as good. Also you would have to pay a core charge. There is alwayws the junkyards!
 
Looks like the climatic choke requires a hookup in the manifold for a pipe...
 
heck, we're charging about $700 for a remanned quad these day's on the boats...

I put a pair of Carters on a boat last summer that where $900 list a piece! :eek1: :doah: :whistle: :haha:
 
Close, there are three types of chokes. Heat stove, the one with the pipe that goes inside the intake, and the electric. Respectivly time wise.
 
Close, there are three types of chokes. Heat stove, the one with the pipe that goes inside the intake, and the electric. Respectivly time wise.

If I order the engine wiring harness for HEI, will it have electric choke wires or no?
 
at least 90% of marine carbs run


49bc599f3b693_95731n.jpg




and about 10% electric..
 
That im not too sure about. Suppose it depends on what year you order?

Also, Im certainly not advocating you towards electric choke tho they do seem to work best in my opinion. I have also owned a few rigs with the heat stove style like would be correct for your rig and liked them just fine. They are a good design and work. Over many years of heat the metal seems to not respnd to the heat as well and needs replaced but no big deal. If it were possible, (and it is) i would stick with HEI and heat stove choke.
 
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