Exhaust heat shield, paint?

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coffeedart67

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I bought a new drivers side exhaust manifold heat shield on ebay, and have a few questions. How were they originally finished from the factory? What would be the best way to paint them so they won't deteriorate and get all rusty? Would engine paint work, or would I want a higher temp paint? They currently have a black coating on them, not sure if it is paint or what.
Thanks
Aaron
 
You didn't mention what model and year you were talking about but all to my knowledge were painted gloss black from the factory. Proper preparation will keep it looking great painted gloss black for a long time. Besides that, it is only held in with a couple of bolts and can be removed very easily to re-prep and re-paint.
 
The motors were painted with the shields and manifolds on them. Most of of the shield will get painted with over-spray collected on the top surface. The shield is sandwiched between the exhaust manifold and head like a gasket, but it isn't a gasket. So it has to get some paint on it.

I would paint without the exhaust manifold on the motor to get good paint coverage underneath them for durability. Even though the factory didn't do this.

Then put manifolds and heat shield on and continue to paint. Ground strap, neg batt cable, and water pump bypass were installed during painting.

Drain plugs were not on the motor when they got painted. So they are never painted.

FABO member ns1rm21 painted this is a 69 340 Los Angeles built Dart motor that was a 55K original mile engine that you could see paint on the original parts. He paints them with primer so the color coat has uniform consistent shades. Otherwise painting over dark bare cast iron, bare light silver aluminum, bare sheet metal will bleed through to the color coat and give the appearance of different shades.

This particular motor did not have painted spark plug holders. But other original '69's have painted holders.

I know of an original 71 340 orange motor in a Feb 1970 built LA plant car with a black dipstick handle. There are many other 71's like that too. And 70 T/A and AAR motors are this way too.
 

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Autoxcuda, you are correct. When I answered this question, I was thinking he was asking about the heat stove that was put on after the engines were painted. after I saw your response, I when back and read the question again and realized I have not read it right...
 
By the way, engine looks highly detailed. Any reason why the plastic wire looms are not painted?
 
va58 said:
By the way, engine looks highly detailed. Any reason why the plastic wire looms are not painted?
Click to expand...

Cause that were not painted originally on THIS motor. Easy to highly detail, when no body has ever messed with it.

Car had like 55K original miles on it. Owned by fellow clubmembers for 20 years. Bought by clubmember from original owner.

Now this particular motor on a Los Angeles plant built 69 Dart 340 Swinger automatic with an Scheduled Production Date (SPD) of A04 (Oct 4, 1968).

BUT, I had a spare original paint '69 340 turquoise valve cover that did show that there were painted wire looms on THAT motor. I bought that years ago off some guy in Iowa. So I think there are other 69 motosr with painted wire looms.

Here's an original paint valve cover off the 69 340 Swinger with paint under the wire loom holder stand off.
 

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va58 said:
Autoxcuda, you are correct. When I answered this question, I was thinking he was asking about the heat stove that was put on after the engines were painted. after I saw your response, I when back and read the question again and realized I have not read it right...
Click to expand...

On 70-71 HP 383 and 440 cars there was a black heat stove that bolted to the exhaust manifold after paint.

And mid 70's small blocks had a bolt on heat stove like that too. There are mid 70's HI-PO drivers side exhaust manifold that are nearly like 68-71 340 manifold inside but have a cast in flanges for a heat stove to bolt too.
 

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Ooops, sorry, 67 Dart Gt w/ 273 2 barrel automatic. The heat sheild after comparing it to the remains of my original is different, it is like the one pictured above on the 340, but it will work. Thanks for the information.
Aaron
 
autoxcuda said:
Cause that were not painted originally on THIS motor. Easy to highly detail, when no body has ever messed with it.

Car had like 55K original miles on it. Owned by fellow clubmembers for 20 years. Bought by clubmember from original owner.

Now this particular motor on a Los Angeles plant built 69 Dart 340 Swinger automatic with an Scheduled Production Date (SPD) of A04 (Oct 4, 1968).

BUT, I had a spare original paint '69 340 turquoise valve cover that did show that there were painted wire looms on THAT motor. I bought that years ago off some guy in Iowa. So I think there are other 69 motosr with painted wire looms.

Here's an original paint valve cover off the 69 340 Swinger with paint under the wire loom holder stand off.
Click to expand...

That might be differences between the plants or the different lines at one plant. Nice info!
 
Were the heat stoves painted black or were they black oxide? Either way they tended to rust.
 
Of course we never say never when it comes to Mopars. As ulf said, could be the different plant ,different procedures kind of thing. Thanks for taking the time to explain and show the details.
 
Looks like the factory even sprayed the oil filter and battery cable. Whatever they could hit in 1 min as it flowed down the assembly line. At least they didn't spray the carburetor. Amazing the heat riser still turned with all that sticky paint on it. If you want it last, you should use different paints for the application, like exhaust manifolds. If you want factory original, you must research how they dripped and slopped the paint and over-sprayed.
 
I sprayed mine with International red on a spray can. I painted the exhaust manifolds as well as the rest of the engine. When it dried up and just put the grease on the inside of the manifold. Works great!

And from the outside the engine look factory correct.
 
C130 Chief said:
Were the heat stoves painted black or were they black oxide? Either way they tended to rust.
Click to expand...

The heat sheild was not originally painted at all. I've seen them with traces of original engine paint, but never traces of black paint.

Heat stove that connects to air cleaner tube is black paint dipped.

The exhaust manifold get the majority of paint near the block mating surfaces. So that is way you will see traces of original paint near the exhaust ports because the paint was thicker there.

This is the same motor above but with about hundred miles on it. Notice the overspray went away.

Again, this is not my car. This car was Troy Bray's (ns1rm21 here).
 

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C130 Chief said:
Were the heat stoves painted black or were they black oxide? Either way they tended to rust.
Click to expand...

Ok, feel the need to post again. Maybe I am confused but we are talking about two different items here. "Exhaust Shield" was install before exhaust manifolds and were an unpainted gasket and received over spray when engine was painted. "Exhaust Heat Stove" Was painted gloss black or dipped in paint and was installed after the engine was painted. Dave Moore's pristine low mileage original Duster 340 show the heat stove. The other picture is of my original exhaust shield removed from my untouched 340 engine. in second picture you can still see traces of blue paint on shield.
 

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va58 said:
Ok, feel the need to post again. Maybe I am confused but we are talking about two different items here. "Exhaust Shield" was install before exhaust manifolds and were an unpainted gasket and received over spray when engine was painted. "Exhaust Heat Stove" Was painted gloss black or dipped in paint and was installed after the engine was painted. Dave Moore's pristine low mileage original Duster 340 show the heat stove. The other picture is of my original exhaust shield removed from my untouched 340 engine. in second picture you can still see traces of blue paint on shield.
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My bad. I didn't realize he was talking about the black heat stove bolted onto the side of the exhaust manifold that has a round fitting on it for the stove pipe tube that brings hot air up to the air cleaner.
 
Here is a better pic Tim...............

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I used VHT on my heat stove, not a lot of miles on it but still looks good. Bought the heat stove from Tony's in excellent condition, just needed cleaned up and painted. It was pricey though. Hopefully another FABO member has one for you at a much lower price.
Yote
 
See that's why the year make and model should be stated from the beginning. A warmed air / heat stove isn't applicable to a 67 273. Need not have been mentioned.
I have the same 273 heat shields here and they have the same gloss black on them. Its a higher gloss than we see on most sheet metals, like body panels. Maybe they weren't painted before delivery in quantities to engine plants,,,, maybe even yes to Plymouth but no to Dodge.
They were painted when packaged/sent to the dealers replacement parts inventory. That is where mine came from.
 
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