Rear Main Seal SBC 400 w/Align Hone - 2-Piece

The Rear Main Seal SBC 400 w/Align Hone - 2-Piece from SCE Gaskets is an essential component for serious small-block Chevrolet engine builders working on a 400 cubic inch platform. This two-piece design effectively seals the critical junction where the crankshaft exits the block, preventing oil leaks that can compromise engine performance and longevity. Whether you're rebuilding a classic muscle car or developing a high-output racing engine, a reliable rear main seal is crucial.

SCE Gaskets has engineered this rear main seal with an integral align hone feature, ensuring precise bore alignment and proper seating during installation. The two-piece construction simplifies access during engine assembly, reducing the risk of damage to the crankshaft. The align hone machining process guarantees that the seal bore is concentric to the crankshaft centerline, effectively eliminating common leakage issues caused by misalignment.

Mechanics and engine builders working on SBC 400 platforms, whether they are naturally aspirated, boosted, or carbureted, will appreciate SCE's proven seal design. This product is particularly beneficial for those using stroker cranks or non-standard block configurations, where bore runout can be a concern. With SCE Gaskets' reputation for quality, this rear main seal is a reliable choice for any engine build.