SBF End Seal Spacer Kit

The SBF End Seal Spacer Kit by Edelbrock is an essential internal engine component engineered for Small Block Ford (SBF) engine builders and restorers seeking proper oil gallery sealing. This precision spacer kit addresses a critical maintenance point in SBF engine assembly—the end seal area where the cylinder block transitions to the timing cover. Whether you're performing a complete engine overhaul, upgrading an existing build, or restoring a classic muscle car, this spacer ensures correct block-to-cover alignment and eliminates oil seepage that can compromise engine cleanliness and performance.

The end seal spacer functions by maintaining proper gap tolerance between the cylinder block's front mounting surface and the timing cover, allowing the rubber or composite end seal to compress evenly and create a watertight barrier against oil leakage. Edelbrock engineered this kit with tight dimensional tolerances—measuring 6.45 by 4.75 by 6.45 inches and weighing just 0.85 lbs—to fit SBF applications without requiring modification. The spacer material and design prevent common issues like premature seal failure, oil weeping at the block-cover interface, and coolant mixing that often occur when proper spacing is neglected during reassembly.

Mechanics and engine builders working on 289, 302, 351W, and other SBF variants should include this spacer kit during any teardown or long-block assembly to guarantee correct fitment and longevity. The kit is particularly valuable for street engines and high-mileage restorations where oil leaks often develop at vulnerable sealing points. Installation is straightforward during engine block prep—simply position the spacer between the block and timing cover before bolting, ensuring the end seal sits at the correct compression point for years of trouble-free operation.