Knucklehead manifold

[Jerry Wieland]

Weird OHV intake2.pngWeird OHV intake 4.pngWeird OHV intake 3.pngWeird OHV intake.png EX knucklehead intake manifold. Anybody know anything about this.

[T. Cotten]

I have no clue, Jerry!

But I do know how to change a .png to a .jpg and enlarge it....

HybridOHVmani1.jpg
Is it large port or small port?

....Cotten

[41craig]

It's on Ebay as a 1936 manifold.

[T. Cotten]

Its '41 and later length, Folks...

....Cotten

[Rubone]

What size are the nuts Jerry, they look small in the pics? Perhaps 45ci OHV?

[Jerry Wieland]

What size are the nuts Jerry, they look small in the pics? Perhaps 45ci OHV?

The manifold is one ebay and I do not have access to it.

[T. Cotten]

The average 1¼" manifold flange, Folks,..

Is about 2.100" to 2.125" or so wide (bottom red line), which is also the flat-to-flat size of large-port nuts.

HybridmaniD.jpg

This nut is smaller, presumeably small-port as advertized.

It seems slightly longer than the common small-port manifold:

SMPRTMAN.jpg

....Cotten

[Rubone]

The TA trike used a large port to three bolt carb. Perhaps like that one. Pictures show what could be the casting letters facing downward.

[41craig]

This manifold sold on Ebay for $1366.77

[T. Cotten]

The TA trike used a large port to three bolt carb....

If anybody needs one, Folks,..

I've got a converted '48-'49 already outfitted with PEEK for a fraction of that ebay mystery.

HYBRMANI.jpg

....Cotten