The Granatelli Motor Sports Billet Thermostat Housing – 530160B is a high‑quality cooling system upgrade precision‑machined from billet aluminum to replace your stock thermostat housing. This durable performance part improves coolant flow, enhances engine cooling efficiency, and adds a clean custom look to your engine bay — ideal for performance builds, restorations, and custom projects.
The Granatelli Motor Sports Billet Thermostat Housing (530160B) is a precision CNC billet aluminum cooling system upgrade for 2014–2020 GM LT‑series engines. It replaces the fragile OEM plastic housing with a durable high‑flow unit that improves coolant flow and temperature control while reducing the risk of cracking and coolant loss.
This billet thermostat housing delivers stronger construction, improved coolant flow, and reliable temperature control — a smart cooling upgrade for GM LT performance engines.
