1948 Oldsmobile Series 76 Engine Blocks
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- Dorman®Autograde™ Expansion PlugsOldsmobile Series 76 1948, Autograde™ Expansion Plugs by Dorman®. Dorman offers a comprehensive line of Engine Expansion Plug Kits to cover a range of applications. The kits include all parts necessary for a complete repair.Direct fit kits available for ease of replacementExpansion Plugs also available individually$7.18 - $8.81