SKU: FEL1043
UPC: 084113010439
MPN: 1043
The FEL-PRO SBC Aluminum Head Gasket (part number 1043) is a precision cylinder head gasket engineered for Small Block Chevy engines requiring a 4.080-inch bore application. Built with a steel core laminate construction and 0.039-inch compression thickness, this gasket delivers the sealing integrity and durability demanded in high-performance rebuild and race applications. FEL-PRO's reputation for OEM-quality gasket engineering makes this component a trusted choice for engine builders and enthusiasts tackling serious block work.
The steel core laminate design provides superior crush resistance and sealing performance compared to solid gasket materials, ensuring consistent compression readings and preventing blowby across the cylinder head interface. The 0.039-inch compression thickness is a critical specification that must match your engine's machining—this dimension directly affects combustion chamber volume, compression ratio, and ignition timing characteristics. Proper gasket selection prevents costly complications during dyno testing or on-track use where marginal compression margins can result in detonation or performance loss.
This gasket is suited for engine builders, restoration specialists, and performance enthusiasts rebuilding Small Block Chevy platforms—whether for street performance, bracket racing, or vintage restoration. Proper installation requires clean, flat deck surfaces and correct head bolt torque sequencing to achieve the full sealing advantage. The 4.080-inch bore specification ensures correct fit for standard or overbore SBC cylinder heads within specification tolerances.
FEL-PRO gaskets are manufactured to exacting standards and remain the preferred choice among professional engine builders for both original equipment specification replacement and performance rebuilds. When selecting a head gasket, verifying bore diameter, compression thickness, and material composition against your specific block and head combination is essential for reliability and peak engine performance.
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