mopar aluminum intakes

The LD-340 is basically a copy of the 68-340 factory intake in aluminum. I may be wrong about this but I believe the LD4B was designed for the 273/318 engine with smaller ports than its brother the LD-340.

Top photo is a LD-340. Though modded, it is not just a copy of a stock intake. Similar, but just in looks as "In general look, it's a dual plane." As far as a copy of the earlier 340 intake, noooooooo way. That would be the MP dual plane 4bbl intake offering. The LD-340 is taller.
(Modded as per the MP manuals. This intake kicks a$$.)

The bottom photo is the LD4B. It has the smaller runners for the smaller engines.

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