FWIW I have a 360 crank also with drilled counterweight holes, just like
yours,
and some rounded corners, although some are beveled. the rod and main
journals have grooves on each side. the number is 4027169-3
followed with a circle with 6 pie wedges in it, and the the letters CFD
after that. the number is cast in, by the way, and there are other
casting
marks and ridges also visible. I read that all 360 cranks are cast ,,,
but I also have heard that if you tap on the crank with a tool or
stick/whatever
and it rings like a bell, which mine does, then it's a forged steel
crank?
so I'm not sure about that test? I also noticed some grooves cut in
concentic
circles on the side of some of the throws? My crank also has grease
pencil
markings on it, but I wont confuse the matter any more with those.
I was and still might use this crank for my Poly stroker project some
day,
when I can afford the machine work.
Schuyler
62 Dodge Dart 440 wagon w/ Poly 318
<http://www.1962to1965mopar.ornocar.org/ml-wrobel62.html>
FYI - I Do the Decal designs for the Poly head 318 and more! email me
with your needs -
<sky62@xxxxxxxxxxxxx>
On Mar 20, 2009, at 9:28 AM, Knud-Erik Holm wrote:
To confuse matters further, I have just taken my 360 apart. It looks
really
nice inside. But I will have to messure all the parts before I will make
any
decisions. Anyway the crankshaft has number 3418640-2 and in one of my
books
it is said to be a cast shaft. In another book it is said that the 360
were
made with a forged crank that are internally balanced. The difference is
the
counterweights. Forged is rounded and cast is sharpcornered. It looks
like
mine are round cornered. And the counterweights are drilled with holes
some
large at the end of the crank. And smaller ones at the other weights.
Please help me someone?
Knud-erik Bergstein Holm
-----Oprindelig meddelelse-----
Fra: Gary H. [mailto:spigot2039@xxxxxxxxxxx]
Sendt: 20. marts 2009 13:30
Til: 1962to1965mopars@xxxxxxxxxx
Emne: aluminum - steel flywheels (was Re: Fw: Flywheel)
I believe the aluminum flywheels are favored by the circle / dirt track
racers as for fast rpm increase heading out of the corners. Mopar
engines
put out good torque by design so don't mind the steel flywheel on street
or
drag use.
Thanks,
Gary H.
-----Original Message-----
This brings up a question I have had and may help Knud in his
decision. I
know aluminum flywheels being lighter , will overcome inertia quicker
therefor gaining RPM faster. In a big block B body with about 3:50
rear
end ratio - 4 speed-5500-6000 RPM limit - about 375-400 Horse -any
advantages or disadvantages to running an aluminum flywheel. Driven
street
and every so often on the strip? My thoughts: a 413 has enough torque
to
get you off the start line ( or from a stop sign) without the inertia
of
a steel flywheel. The aluminum flywheel would wind up quicker, Any
experience out there with the aluminum
flywheels?...................MO.......ew iowa
----
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Please address private mail -- mail of interest to only one person --
directly to that person. I.e., send parts/car transactions and
negotiations as well as other personal messages only to the intended
recipient, not to the Clubhouse public address. This practice will protect
your privacy, reduce the total volume of mail and fine tune the content
signal to Mopar topic. Thanks!
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