Gen V 502 Rear Main Seal 1991-92 FULL CIRCLE

The Gen V 502 Rear Main Seal 1991-92 FULL CIRCLE from FEL-PRO (MPN 2920) is an OEM-quality crankshaft seal designed specifically for 1991–1992 big-block Chevrolet 502 engines. This seal addresses a common failure point in classic muscle car and performance builds: rear main seepage that can compromise oil pressure and threaten engine longevity. Whether you're restoring a vintage Corvette or refreshing a performance crate motor, this full-circle design provides the reliability your engine demands.

FEL-PRO's FULL CIRCLE rear main seal features an advanced elastomer compound formulated to withstand high oil temperatures and pressures typical of big-block Chevy applications. The full-circle design eliminates weak points found in split-design seals, ensuring uniform contact with the crankshaft journal and preventing blow-by that can lead to oil loss and bearing starvation. Its low-friction geometry reduces drag on the crank, minimizing heat generation—critical factors for high-displacement engines operating at sustained RPM.

This seal is ideal for engine builders, restoration shops, and performance enthusiasts replacing worn or failed rear main seals on 1991–1992 Chevrolet 502 engines. Precision engineering ensures zero rework during installation—no trimming, fitting, or adjustment required—saving labor time and eliminating installation variables that could compromise seal integrity. With its reliable performance, this rear main seal is a valuable component for any high-performance engine build.