Rear Main Seal - Ford 351W Block w/ 302 crank

The Rear Main Seal for Ford 351W Block with 302 crank by COMETIC GASKETS is designed for builders and mechanics working on critical engine sealing applications in classic Ford performance builds. This seal is essential for preventing oil leakage at the crankshaft's rear exit point, which is vital for maintaining engine lubrication and preventing oil spills.

Constructed from precision-molded elastomer, this rear main seal is engineered to withstand the pressures and temperatures of modern engine oils while providing a reliable seal against the crank's rotating surface. Its geometry is specifically designed to fit the dimensions of a 351W block paired with a 302 crankshaft, making it suitable for performance rebuilds that optimize displacement and stroke.

This rear main seal is ideal for mechanics and enthusiasts engaged in engine rebuilds, crate engine installations, or block and crankshaft swaps on Ford small-block platforms. Installation requires engine removal or a teardown to pan-off level, making it a logical choice during a full engine rebuild.