Building a proper engine compartment for a restomod requires thinking about heat management from the start, not as an afterthought.

The heat generated by a large-displacement V8 is substantial. It radiates from the exhaust manifolds, the engine block, and the cylinder heads. In a tightly engineered original engine bay, this heat is managed by the factory's airflow design. When you add headers, a bigger carburetor, and aftermarket accessories, the airflow changes.

Heat wrap on headers helps. Ceramic coating on exhaust components is better — it contains the heat in the system rather than radiating it into the engine bay. A properly engineered hood vent or cowl induction system pulls fresh air in and hot air out. Plan this before you paint anything.