Details.059" CFM-20 perforated steel cored head gasket (note - not multi-shim type). Left side head. 1UZ-FE engine. LS400 91-00, SC400 91-97, GS400 98-00. CFM-20 is a perforated steel core with an elastomer surface is ideal for head gaskets allowing heat to be drawn evenly across the gasket surface while providing maximum sealing characteristics when exposed to coolants and oils.
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