Boss 302 Build One Piece
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We're doing something sacrilegious by converting an early Boss 302 block to a one-piece rear main seal. Ford used a two-piece rear main seal in all of its engines until 1982. Installed properly, it works well but eventually leaks. Ford and the rest of Detroit went to one-piece versions to eliminate that problem. Converting your small-block to a one-piece seal is easy when it's performed during a rebuild. View Related Article
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