【Wide Compatibility】Compatible with SB Chevy 305 / 327 / 350 / 383 engines, supporting all 1955–1998/1999 Chevy Small Block exhaust headers with up to 1/2" thick flanges. （Not for OEM manifolds. ）Also fits Pontiac, Buick, Oldsmobile 350 V8 engines using aftermarket exhaust headers.
【High-Quality Copper Gaskets】Precision-built Exhaust header collector gaskets provide superior sealing, heat resistance, and durability, preventing leaks and blowouts even in high-temperature exhaust environments.
【Premium Stainless Hardware Included】Includes 18-8 stainless steel 3/8-16×1" bolts and washers for exceptional corrosion resistance—unlike chrome or carbon steel bolts, these will not rust or seize.
【Complete Package】Comes with 2PCS copper collector gaskets + stainless bolts & washers, offering a full, ready-to-install solution for your exhaust header upgrade.
【Reliable After-Sales Support】Each product is thoroughly inspected before shipping. If you have any issues, simply provide your vehicle's make, model, year, and photos—we respond quickly and continuously improve our products based on your feedback.
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