13b housing question.

[Whizbang]

Originally Posted by Jeff20B

Why not use something like a 6 port 12A intake manifold? Then you wouldn't need to machine coolant seal grooves in the rotor housings because a set of FC side plates could be used. Of course how often does one run across a 6 port 12A intake manifold? They're as rare as 4 rotors.

aren't they somewhat common in the overseas market since the 6port 12a was the engine they used starting in like what, 82 til 84.