Heavy Duty 3 Inch Copper Exhaust Flange Collector Gasket Kit With 6 Pcs M10 304 Stainless Steel Bolts And Nuts For SBC BBC Chevy 302 350 383 454 V8 Tri Tube Headers Tight As A Drum No Stress Bolt On Header Upgrade Rig

Heavy Duty Copper Exhaust Collector Seal Kit
✔️ Copper seal for 302 to 454 builds. Seals triangular headers. Six bolts.

This heavy duty exhaust gasket kit delivers a leak free seal for your V8 engine upgrade project. The package comes with two solid copper collector gaskets along with six matching M10 flange bolts and nuts. You install it directly onto small block and big block Chevy heads from three hundred two to four fifty four cubic inches. It replaces worn out factory seals and stops ticking noises caused by loose exhaust connections.

✅ Two copper discs cover seven six by seventy six millimeter or three inch collector openings
✅ Six M ten point zero millimeter or quarter inch flange bolts pair with flat locking nuts
✅ Raised O ring profile sits flush inside the three inch by seventy six millimeter housing
✅ Heat resistant metal tolerates rapid cycling without warping or losing clamp force
✅ Handy bolt on process takes fifteen minutes with basic ratchets and factory torque specs

💡 What is a sealed copper exhaust flange kit used for on classic American V8 engines This handy setup replaces cracked factory seals to stop annoying exhaust ticks without any drama. Here is why mechanics swap out stock gaskets for heavy duty copper assemblies. - Prevents dangerous gas leaks by compressing around uneven flange surfaces - Handles thermal expansion better than paper or fibrous alternatives - Keeps backpressure stable so your camshaft breathing stays optimal under load - Eliminates guesswork during header swaps with pre measured fastener hardware included

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