What do you think? Paint transmission?`

bead blast it and hit it with some bedliner lol.

VHT makes a "Flat Aluminum" ceramic engine paint that would make it look nice.
I'm doing my SS block and heads with it currently.

What ever you do, DO NOT ceramic coat it. It will make it burn up!!!

powdercoat it

Hmmmm, I usually prefer a little more meaty detail in a warning followed by 3 exclamation points.

The thermal insulation properties of a thin layer of aerosol paint containing ceramic particles causing a transmission to burn up is debatable.
I would propose that while it is true that a bare surface will dissipate heat the best of any scenario, a layer of paint that could be very well
measured in angstroms, would not offer a huge insulation barrier any more than one covered in everyday road grime.

If that was true, ceramic coating manifolds would be a total scam…

Now you can also get heat-emitting paint, hell you could even anodize the thing, black hard anodizing helps heat dissipation too

In my testing that i did as part of my job, hard anodizing (optical black) extruded heatsinks that were cooled by a fan actually performed
slightly worse when compared to their uncoated equivalents. In everyday use, the difference would be marginal but with high performance
LED's, a few percentage points can make a big difference in performance and longevity. They were initially hard anodized for cosmetic reasons.
In the end, it was a cost issue and bare aluminum won. I wouldn't have any issue with painting a transmission.

Painted mine with a silver/blue hue flaked high temp heat spray. Sure it's got scratches, but it has held up so far with no issues and keeps the trans clean.

Why even bother? Seems like more trouble than it's worth.

I thought it was cool at the time. It's still cool to me when I get under the trans.

Because mirror under your car at carshows, obviously.

I had some alignment techs compliment me on how clean the underside of my black Z was
when they had it up on a rack. In the years that it was off the road because i lacked funds
to fix the motor, i cleaned and painted stuff. Hammerite is durable stuff.

Think that I am going to paint it.. why?? Not for car show mirrors or alignment techs.. more because I try to put things back on my Z that are factory new or better.. Treat it like I was restoring a priceless Ferrari or something.. but mostly so I an drive down the road, and know that there is a shiny new trans there underneath.

if you have spray that doesn't turn soft when its heated, then use it. its generally a paint with ceramic in some form or another embedded in the enamel. if you are going to clear coat it or try and make it look glossy, then its' just going to get dirty and ugly when you go service it or anything around it.

a nice satin aluminum finish looks great and will make working under the car a bit more "pleasant". and if it's a durable satin finish, you can spray it down with some soapy water before working on it and it will be easier to clean and generally easy to deal with.

i sprayed my lower intake manifold with flat aluminum paint. then i went and cleared it with "compatible' clear. and it only makes it soft and muddy when the engine is warm, which is shitty.

I won't be clearing anything in the future if it's going to come in contact with heat. even if it's 1200 degree clear for 1200 degree engine enamel made by the same chemical/coatings company.