This BBK header gasket set is designed specifically for GM small block 305/350 V8 applications and uses steel-reinforced graphite material for a secure, long-lasting seal. The gasket pair fits stock and aftermarket headers with a 1.625-inch port size to reduce the risk of blown gaskets and exhaust leaks. It’s intended as a reliable replacement whenever headers are installed or serviced on SBC engines.
BBK GM 305 350 Exhaust Header Gasket Set