Exhaust Header Collector Gasket Set .060in Copper

The Exhaust Header Collector Gasket Set .060in Copper (MPN C5907C) is a precision engine sealing component engineered for high-performance exhaust manifold applications where reliability and heat resistance are non-negotiable. Designed for professionals and enthusiasts who demand OEM-equivalent or superior gasket performance, this copper gasket set addresses the critical seal between the exhaust header and engine block—a junction that experiences extreme thermal cycling and pressure fluctuations. Whether you're rebuilding a high-output engine or replacing worn factory gaskets, this collector gasket set ensures a leak-free seal that maintains exhaust scavenging efficiency and prevents toxic fume intrusion into the engine bay.

Constructed from 0.060-inch thick copper, this Cometic gasket delivers superior thermal conductivity and conformability compared to conventional composite materials, allowing it to accommodate slight surface irregularities without sacrificing seal integrity. Copper's inherent strength at elevated temperatures resists blowout and compression set—critical factors in exhaust applications where sustained heat can exceed 1,000°F at the manifold interface. The three-bolt pattern (compatible with 3-inch diameter collector ports) ensures even clamping load distribution across the gasket face, minimizing stress concentration and prolonging service life. This pair gasket set (two gaskets per set) covers both manifold-to-collector junctions on dual-exhaust configurations, making installation straightforward for engine shops and experienced DIY builders.

This gasket set is ideal for mechanics, engine rebuilders, and performance enthusiasts working on small-block and mid-sized displacement engines with 3-inch collector ports and three-bolt mounting. Installation requires proper bolt torque specification (typically 15–25 ft-lbs depending on manifold material) and a clean, flat sealing surface on both the header flange and engine block. Verify your specific engine's manifold bolt pattern and port diameter before ordering to ensure compatibility. For long-term reliability, pair this gasket set with quality stainless-steel bolts and a high-temperature anti-seize compound to prevent corrosion and ensure easy future removal.