nothing except the block and manifold ["engine enamel"], if anything else under there gets that hot you better bail out the inner fenders and such are normally just a standard satin/semi-gloss black
"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir "When we tug a single thing on an old truck, we find it falls off" ~ me Some TF series details & TF heater pics