Package includes: 1*OEM standard molded thermostat housing gasket that you can use with confidence. Lincoln Continental Engine Coolant Thermostat Housing Thermostat Water Neck Housing Gasket - /8 Aluminum Silicone Thermostat Water Neck Replacement Chevy Sbc Bbc 265 283 305 327 350 383 396 400 427 454 472 1af2ae2c 1fb4 4eb8 A440 6ccd32a39c80.5840a243c9e76b94281c86ac15de1654 SBC BBC Aluminum Silicone Thermostat Water Neck Ho... – Vicedeal Easy To Use: Our thermostat gasket is easy and solid to install, no sealant required, can directly replace the old one. MADE FROM A 1/8" ALUMINUM CARRIER WITH MOLDED SILICONE INSERT. FITS ALL SB & BB CHEVY ENGINES INCLUDING 265 283 305 327 350 383 396 400 427 454 472 500. Buy it now. May you Like. REUSABLE, NO SEALANT REQUIRED Aluminum Bracket: Our engine coolant thermostat housing gasket comes with a 1/8 inch aluminum bracket that securely holds the support gasket for a good seal.