62Ranchero200
Famous Member
Greetings Ford Six Fans,
This is a rehash of a topic that has been discussed several times over the years (by people far more knowledgeable than I).
The aluminum head, with it's removable intake manifold that can accept 2-V Holley/Autolite, 4-V Holley/Autolite, and 2-V Weber carbs, is a huge improvement over the log head. However, fuel distribution still seems imperfect, based on the relative length of the intake runners (3 & 4 are the shortest, 2 & 5 of a moderate length, and 1 &6 the longest). I expect that if fuel distribution could be improved, performance would also improve. Is that reasonable?
Maybe fuel injection (especially multi-port) offers the best fuel distribution; but I am not ready to tackle the complexities of fuel injection.
One carburetor per cylinder should theoretically be the best fuel distribution with carburetors; but all of the existing 1-V Ford carbs are too bulky for this, so motorcycle carbs would have to be used, with, I think, significant work to adopt them.
I expect that three 2-V carbs would be the next-best fuel distribution; rather than one carb per cylinder, this could offer 1 venturi per cylinder (depending on how the 2-V carbs are mounted), which would (I think) be almost as good. Have seen several three 2-V carb manifolds, but alas, they only fit Australian heads.
So I'll make this offer: if anyone with the fabrication skills cares to make a couple of 3 2-V manifold sets for the aluminum head (one for you and one for me), I'll buy you three carbs of your choice for your new 3 2-V manifold (new or used, your choice), and we can both test with our separate combos.
As I see it, the basic options are:
The three 2-V carbs joined to common plenum? Or three separate pieces, one for each 2-V carb, that bolt directly to the aluminum head?
Side-draft (such as for Webers) with a vertical mounting flange, or with a horizontal mounting flange, for Holley 2-Vs?
Thoughts?
Thanks
Bob
This is a rehash of a topic that has been discussed several times over the years (by people far more knowledgeable than I).
The aluminum head, with it's removable intake manifold that can accept 2-V Holley/Autolite, 4-V Holley/Autolite, and 2-V Weber carbs, is a huge improvement over the log head. However, fuel distribution still seems imperfect, based on the relative length of the intake runners (3 & 4 are the shortest, 2 & 5 of a moderate length, and 1 &6 the longest). I expect that if fuel distribution could be improved, performance would also improve. Is that reasonable?
Maybe fuel injection (especially multi-port) offers the best fuel distribution; but I am not ready to tackle the complexities of fuel injection.
One carburetor per cylinder should theoretically be the best fuel distribution with carburetors; but all of the existing 1-V Ford carbs are too bulky for this, so motorcycle carbs would have to be used, with, I think, significant work to adopt them.
I expect that three 2-V carbs would be the next-best fuel distribution; rather than one carb per cylinder, this could offer 1 venturi per cylinder (depending on how the 2-V carbs are mounted), which would (I think) be almost as good. Have seen several three 2-V carb manifolds, but alas, they only fit Australian heads.
So I'll make this offer: if anyone with the fabrication skills cares to make a couple of 3 2-V manifold sets for the aluminum head (one for you and one for me), I'll buy you three carbs of your choice for your new 3 2-V manifold (new or used, your choice), and we can both test with our separate combos.
As I see it, the basic options are:
The three 2-V carbs joined to common plenum? Or three separate pieces, one for each 2-V carb, that bolt directly to the aluminum head?
Side-draft (such as for Webers) with a vertical mounting flange, or with a horizontal mounting flange, for Holley 2-Vs?
Thoughts?
Thanks
Bob