Looking for "plumbing" onfo on a Dodge 426 Hemi en

[peteski]

I am building the Revell 1:6 scale model of this engine. Simliar to www.revell.com/catalog/products/Plymouth_426_Hemi_Cuda-965-8.html but I have the older version (1964?) which had a round chrome air cleaner, not the shaker scoop. It has dual carbs.

I'm trying to add details to this model but I have never been that intimate with a 426 Hemi.
I have found some good reference photos on the web and I already added bunch of bolt castings, remounted the distributor and detailed the alternator.
I also replaced kit's PCV and Vacuum Advance hoses and the PCV valve with more realistic looking parts. I also replaced the fuel lines and added a throttle lever return spring.

But I can't find any good info on the rear part of the engine. And the kit has some odd parts in it. FIrst there are 2 black lines (metal on the real engine?) which go from the back of the intake mainfold to the end of the right header. What are those for? Are they supposed to be there?

Next is a white plastic part which looks like either metal or plastic hose/tube. It is called choke control tube and it connect from the choke activator on the side of the rear carb to the end of right exhaust manifold. Is that correct? Is it a metal or plastic piece on the real engine? Is it supposed to be painted white?

I've seen many electric choke controls and mechanical (bi-metal) controls. Those usually sense the intake manifold's temperature. I never seen one attached to the exhaust header via a tube

Any info will be appreciated.

[robriley]

FIrst there are 2 black lines (metal on the real engine?) which go from the back of the intake mainfold to the end of the right header. What are those for? Are they supposed to be there?

yes, they are supposed to be there. those are for 9i beleive0 to help with crankcase ventillation (like the pcv valve).

Next is a white plastic part which looks like either metal or plastic hose/tube. It is called choke control tube and it connect from the choke activator on the side of the rear carb to the end of right exhaust manifold. Is that correct? Is it a metal or plastic piece on the real engine? Is it supposed to be painted white?

this is the heat riser. exhaust heat heats up the choke spring...to tell the choke when to open all the way. that could be black, bare metal color, or copper. some had copper tubing for this.
chrylser was famous for getting heat from the exhaust manifold for the choke.

[peteski]

Thanks for the info Rob. I also posted this question on Hobby Heaven board and I received a similar reply:

"Yes the tubes are metal, They are there to provide heat to the manifold for faster warm-up and smoother running, the other line is steel and is covered with a white, fiberglass, braided tube. It's purpose is to carry heat from the exhaust manifold to the choke to help in cold starting. Paint it flat white."

Thanks to the info you provided I was able to find what I think is a pretty good representation of that tube.

I am a bit of a packrat and I remember saving some high temperature insulated wire from a halogen lamp fixture. It has is covered with a white, temperature resistant braid. And the diameter seemed to be right.

Here is the finished model showing that white tube: