yep, Edelbrock made them in 2 different styles STR-15
& Reg. factory looking scaled down 'sort of' versions of the (RB)
to fit the B-series low-deck block, use all the same stuff
solenoid, carbs, linkages, choke stove & rod, fresh air air-cleaner etc.
just the manifold was cast for a Low-deck 361-383-400 block
I had one
(on a 68 RR 383 cid Low-deck with an Edelbrock 6bbl alum. intake,
3 x 2300 series, center/needle & seat,
a 500cfm center carb with choke & vent
& 2 350cfm outboard vacuum carbs)
in like 1975-76 (?) & it was an older manifold,
I bought second hand, from a guy up the street from me...
I'm not sure what date they started making them...
Direct Connection later, made a version for the low-decks BB too
than when this was all "allegedly' happening
MoPar Performance also makes a nice one, that's much, much later
(where I got my last couple)
Weiand also did at one time, more of a tunnel-ram version
started in like 1972-ish
I don't think Edelbrock makes them anymore,
or at least they didn't for a while, not for the Low deck BB's anyway
or IF they are, they have just recently started again
all them have made/make or use to make
B-series Low-deck Mopar, Plymouth 6bbl/Dodge Six Pac Manifolds
for 361-383-400
as everyone else said it was an aftermarket deal
strange stuff happened at man dealership, back in the day
getting aftermarket part installed was a regular occurrence
BUT;
it never came from Chrysler Corp.,
Plymouth or Dodge equipped that way...
Numerous car dealers & assoc.'s
Mr. Norms, Motion Performance, Dick Landy, Hurst, Car Craft etc.
Mad Scientists, rouge Chrysler Engineers on Woodward Ave.,
they all did that stuff too, were all willing to do their own creations
anyway carry on, just added my $1.25
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When it comes to Ma MoPar
'never say never'
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unless it's a fake *** contrived 4 dr `cuda,
that **** "never ever" happened