Freeze Plug Kit (bottom end) - M20 Engine

replacement/performance/race. When rebuilding your engine machine shops will typically punch out the freeze plugs and hot-tank the block*. This is a replacement set of freeze plugs. **Important: Make sure your machinist is aware of the need to replace the intermediate shaft bearings if hot-tanking the block. Replacements can be tricky to come by and not all machinists are comfortable in sizing new bearings from scratch.