Hot Rods Exhaust Manifolds Temp

How Hot do exhaust Manifolds get? The reason I asked is that I seasoned my barbecue grill today and I thought would it be possible/prudent to seasnon exhasut manifolds...

 

I use the high heat grill spray. But you've got to wire the steaks on so they don't fall off.

Flip and repeat. 1/4 mile pass minimum for rare.

 

Exhaust gas temps on my diesel are commonly over 1,000 F according to the sensor in the exhaust manifold. As an upper limit 1500 F would be in the danger zone for a street diesel. Running down the freeway without a load mine are about 800 F. That’s a diesel, not sure about gas.

Let’s say I’m talking about a pre-1965 diesel so people don’t get offended.

 

At engine temp my cast irons run between 4-500 depending on where you check. It's not what they will see climbing a grade for 10 miles. I've used BBQ paint on complete exhaust systems and brush on Eastwood cast iron exhaust paint without seasoning them and they still look great after 8 years.

 

Damn... Steak sounds good right about now.....
And it's barb-a-que weather outside....

 

They can get cherry red on some engines, under some circumstances. A low power engine never ran hard, way cooler.
https://www.google.com/search?q=glo...XNOpoKHbfSDYsQ_AUoAXoECAwQAw&biw=1920&bih=969

 

When I say seasoning my grill what do is bake them around four hundred degrees after coating them with vegetable oil. So could I do something similar using engine oil?

 

When is it not?

 

Any engine oil I've ever had on cast iron exhaust manifolds burns off pretty quickly. I wouldn't waste the time, or the oil. It's just going to be a smoking mess.

Dull glowing cast iron is going to be close to 900º F. Back when I was a kid on the farm in South Dakota we worked well into the night plowing after school in the spring. The exhaust manifold of the old two cylinder John Deere Model 70 would glow a dull red, and I'd light my smokes by touching them to the manifold.