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This kit contains all the parts necessary to replace the dry joint 14° exhaust on a MCM small block V8 engine with standard cooling and no risers. Note: Engines with freshwater cooling &/or risers may require additional exhaust elbow gaskets to be ordered separately. Fits the following GM small block (305, 350 & 377 CID) engines with dry joint 14° exhaust elbows. 2004 & newer MCM sterndrives (non?EC) engines (s/n 0W310000 and above) 2002 & newer MIE inboards (non EC) engines (s/n 0M317000 and above).