The "Double four-barrel Group" package only included intake and exhaust
improvements, and a different cylinder head. There is no mention of a
different cam. There were several choices left to the owner. All 56 D500
cams are solid lifter. The standard D500 cam had 252/252 degrees and
.400/.409 lift. For comparison, a 315 Poly hydraulic cam was 244/244
degrees and .360/.360 lift. The only info I have on cam 1732555 is
280/270 degrees. I have no info on cam 1737810 other than it was called
the "NASCAR" cam.
Dave Homstad
56 Dodge D500
On Mon, Jan 23, 2012 at 4:46 PM, Eastern Sierra Adjustment Svc wrote:
Actually, the "standard" 1956 D500, as of a company letter, of 3/9/56,
confirms that the Hemi engine would become a stand-alone option (just
as it would continue to be, in the 1957 model year).
The Heavy Duty suspension items would continue to be offered (but
not advertised).
As far as camshafts are concerned, I don't know their specifications,
but
the standard (single-4) D500 carried P/N 1731594, with an
optional one: 1732555 being available, as per a "Confidential Price
Bulletin",
of 12/22/55.
Another C.P.B., of 1/12/56, confirms the (sole-) camshaft for the D500
engine
as being 1737810.
Interestingly, right before the Daytona Beach Speed Weeks/races, there
was an
"Inter[should be: "intra"]-Company Correspondence", of 2/2/56: "Items
Required
For Special Package On Racing Cars"---which confirms the Kiekaefer
intake
manifold, and the carbs 1731639 & 1731476...but, there is no
mentioning of any
special 'racing' camshaft being available as part of the D500-1 race
car 'package'.
The AMS Specifications Sheets (that I have) do not specifically
identify any cams
that were unique to the D500 0r the 500-1, altho the valve timing
allowed the "D500"
models to breathe deeper than the Poly head engines.
Neil Vedder
On 1/23/2012 12:47 AM, The Grumpy Old Man wrote:
So,
Let's review ....
A Standard D-500 got 12" Chrysler brakes, stiffer springs fore and
aft, a 315 short block with Hemi top end, and a 4bbl carb
A Standard D-500-1 got 12" Imperial brakes, stiffer springs fore and
aft, a 315 short block with Hemi top end, and 2 4bbl carbs.
Can someone in the know explain the specific differences between
these two and add anything I missed ?
B.
----- Original Message -----
From: "Dave Homstad"<dhomstad@xxxxxxxxxxx>
To: L-FORWARDLOOK@xxxxxxxxxxxxx
Sent: Monday, January 23, 2012 12:20:00 AM
Subject: Re: [FWDLK] 1956 Dodge D501 vert sold at BJ
Just to add to what Tim and Ron have said, the only true original 56
D500-1 cars currently known are Tim's and Gary's. The original D500-1
package was really just a chassis package: Imperial brakes and
wheels, stiff springs, HD 3 speed manual tranny. The dual quad carbs
and huge exhaust manifolds were added later as a "Double four-barrel
Carburetor Group" to existing D500-1 cars when the parts became
available. They were also included on complete factory built later
cars.
It is rumored that only 100 of the original intake manifolds were
made. These are very rare. Many were probably destroyed with their
cars. I once asked Arnie Beswick what happened to his D500-1. He sold
it to a local guy who lost a race with a train a little while later.
In 1957, Offenhauser made a 2x4 intake manifold used on the 57 Super
D500 325 Hemi. They also sold this as an aftermarket part up to
today. These are easy to find, even new. This is what is on most of
the claimed D500-1 cars sold today, including the convert at B-J, and
the Golden Lancer sold there a couple of years ago.
I met a fellow years ago who ordered a D500-1 car, but only received
a standard single 4 bbl D500. I guess he had no racing connections.
He then ordered the 2x4 manifold over the parts counter, but never
installed it on the car. So I bought it from him. Maybe I'll use it
someday.
Dave Homstad
56 Dodge D500
On Sun, Jan 22, 2012 at 11:08 AM, Tim Dupont wrote:
Yes I agree it seems like all the D500-1 cars that have gone thru
Barret Jackson are conversions from D500 Modes at best. I still only
have a build sheet confirmation of one other true Dash One Model from
56 out of all the cars that have been brought to my attention. That
being Gary Richards car he is restoring in California. That doesn't
mean that there are not others, they just are not confirmed by me or
anyone I know. And to continue to update facts on the D500-1 Model...
Bernie Hentges one of 18 surviving drivers of the 1959 Daytona 500
confirmed that he picked up his 1956 D500-1 complete with the Dual
Quad racing engine package from the factory and drove it home. He
also recounted knowing other drivers who received the upgraded
factory Dash One cars for racing purposes. This first hand
information from the very active 74 year old Hentges has dispelled
all notions that cars were only produced with the parts in the trunk,
so this error should be corrected whenever possi!
ble. Thanks All, Tim in Golden Co 1956 D500-1
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