Factory original snowflake GM aluminum intake – GM Mercury Marine casting 6269318 - Dual plane intake for rectangle port Big Block Chevy 396-454 and 502 cu. in. marine applications - Cooling ports are cast in brass for corrosion resistance - intake has recently been cleaned up in “as found” condition - no cracks or weld repairs as shown – set screws are in the carb mounting holes that were not used – all threads are good – good shape with no excess corrosion as shown