*** IN STOCK SHIPS TODAY *** BBC/481X/MBR Viton rear main seal. This seal will withstand the heat and abuse that a blown alcohol or nitro motor dishes out.
Made of durable Viton material this rear main seal is an excellent choice for your race engine. Fits all BBC, Dart, World, Donovan, CN, MBR, Arias 8.3 and most other aftermarket engine blocks.
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