SBC Rear Main Seal Dyno- Pak (10) 2-Piece Viton

The SBC Rear Main Seal Dyno-Pak (10) 2-Piece Viton by SCE Gaskets is a precision engine seal package designed specifically for small block Chevy applications. This product is ideal for builders who require reliable oil containment and extended maintenance intervals, making it suitable for dyno testing, street performance, and high-output track applications.

The Dyno-Pak includes ten sets of two-piece rear main seals, which provide a superior sealing geometry compared to one-piece designs. This design minimizes leakage at the crankshaft interface, where oil pressure and engine rotation create significant stress. The use of Viton material ensures that the seals can withstand higher operating temperatures and resist degradation from modern synthetic oils and additives.

Engine builders, performance shops, and technical operations that work with SBC platforms—from classic hot rods to modern crate engine builds—benefit from the bulk pack format. This configuration streamlines inventory management and ensures consistent seal specifications across multiple builds or test vehicles, ultimately reducing costs and improving efficiency.