dmsfrr
Well-known member
Ok, maybe dual exhaust was optional? The exh manifolds are listed in the bottom chart on the page at this link. It wouldn't be the first or last time I've been wrong.-----
Believe it or not, '54 Mercury's came stock with single exhaust and the exhaust crossover pipe in front of the engine. ----
http://y-block.info/casting/exhaust.html
Mercury
1954 MB 256 R.H. ............................. EBY 9430-B
1954 MB 256 L.H. use with dual exhaust EBY 9431-B
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