Synister Products manufactures Thermostat Housings
We designed these to fit LS, SBC/BBC, and 348/409 Engines.
They are made with the highest quality billet aircraft aluminum T6061-6511.
We offer a variety of finishes to suit your needs. Call 866-796-4787 for custom colors. Please allow an additional two weeks delivery time for this option.
All of our products are 100% Made in America!