BBC ISC Titan Copper Head Gskt 4.630 x .043

The SCE Gaskets BBC ISC Titan Copper Head Gasket with 4.630" bore and 0.043" compression thickness is a precision cylinder head gasket engineered for Big Block Chevy engines requiring reliable sealing under high-performance conditions. This copper gasket is designed to handle elevated boost pressures and sustained combustion temperatures, making it the choice for serious engine builders and performance enthusiasts pushing their BBC platforms to the limit.

The 4.630-inch bore diameter matches common BBC cylinder head configurations, while the 0.043-inch compression thickness is a critical specification that affects combustion chamber volume and compression ratio. Copper construction provides superior thermal conductivity and conformability compared to standard materials, allowing the gasket to maintain a consistent seal across thermal cycles and varying cylinder pressures. The ISC Titan series from SCE Gaskets represents a proven design that withstands the demands of forced-induction engines, naturally aspirated strokers, and high-RPM applications where gasket integrity is non-negotiable.

This gasket is intended for BBC engine builders, performance shops, and experienced engine assemblers preparing complete or refreshed Big Block Chevy platforms. It's specified for applications ranging from street performance to competition engines, particularly where existing OEM gasket designs have proven insufficient or where builders require the documented reliability of a premium copper gasket solution. The part number S136243 ensures correct fitment and compatibility with intended BBC cylinder head applications.

Proper installation requires following manufacturer guidelines for gasket surface preparation, fastener torque sequencing, and reassembly procedures specific to your engine platform. This is a critical engine component—precision fit and correct installation directly impact long-term engine durability and performance.