My car is a 1967 Fury III convertible. I
would like to know which would be the
best disc brake conversion kits to use to
replace the 9˝ manual drums? My father
got the car new. I have 16˝ ARE rims
that clear on the car from a 1970 ’Cuda
I was swindled out of. I am only going
to do this once and I want to do it right,
slotted, maybe drilled? I would like maximum
stopping power. I wanted to put
14˝ rotors on the front and 12˝ on the rear
but it looks like I may need 17˝ rims for
the 14˝ rotors. I also want steel braided
brake lines for both front and the one rear
unless the kits need two in the rear but
I’m not seeing how that would work.
I would also like to know if there is a way
to bolt the overdrive section of a 518 to the
existing 727-A so I can keep my four-pinion
planetary gearset? I was a subscriber from
the beginning for a long time, now I pick it
up at the store so I may have missed any
tech articles about this. The 340 and 727-
AHD are from a 1972 ’Cuda.
I have the originals in a 5th Ave that
ethanol dissolved the passenger side
frame rail so I can run it.
Whew! Where to begin? The stock drums
are 11˝, not 9˝. There’s not a whole lot of
C-body aftermarket brake upgrades, but
you can contact suppliers such as Bergman
Auto Craft, Firm Feel Inc., Scarebird,
etc. and see what they have. For my
money, on a smallblock C-barge, I’d sure
use stock ’72½–’73 discs (complete),
these are beefy 11¾ X 1¼˝ unicast rotors.
Out back the junkyard disc swap (Liberty)
we outlined a few issues back would be
just fine. Sure, you could probably go
larger, but with a smallblock in a beached
whale it is never gonna go 150 MPH. So…
why? Especially with 16˝ wheels, there will
be lots of cooling air.
Fixed caliper rear discs only need one
center brake hose. Sliders need three
hoses or flex lines. Remember that any
disc swap will need a disc-specific power
booster to prevent the booster from running
out (going solid).
There’s no way to bolt a 518 OD on a
727 case. Most 518s had beefy internals
anyway, surely better than what was in a
stock ’72 340 A727-A. The components
forward of the OD assembly were primarily
727 “sourced.”
Your last sentence went totally over my
head. I’ll save my usual wisecracks, but
I can’t help you at all with ethanol-dissolved
steel. FYI: I tried to reply personally
via email, but the address you provided
bounced as non-existent.
