I painted my slant six with POR15 Chrysler blue and manifold high heat paint. Brushed both on and they look great.
Didn't brush on the valve cover though. Even though the brush marks mostly disappear, I didn't think they would disappear enough on a smooth surface that is front and center.
I'm not sure what would happen if you could keep the paint warm enough to flow, before the brush marks lay down, or use thinner. That's how we brushed metal trim , back in the day... I'd just Send it, to CudaChick1968!
