The 360 is balanced with the flex plate on back and harmonic balancer on
front. The torque converter is neutral balanced. At least on the Magnum
engines. No need to any special tools to figure out what position to put
them. If you are building a new motor, it would be best to have the whole
rotating assembly balanced professionally.
brian cropp
> -----Original Message-----
> From: owner-dakota-truck@bent.twistedbits.net [mailto:owner-dakota-
> truck@bent.twistedbits.net] On Behalf Of Jamie Calder
> Sent: Sunday, February 28, 2010 7:59 AM
> To: dakota-truck@dakota-truck.net
> Subject: Re: DML: Internal vs. External Balance
>
>
> I found a good article about balancing:
> http://www.carcraft.com/howto/ccrp_0803_engine_balancing/index.html
>
> So if an externally balanced 360 needs a new harmonic balancer, flex plate
> or flywheel (whichever the counter weight are attached to), does the new
> part have to be taken to a machine shop so it can be balanced to match the
> existing parts?
> and which part does a 360 use to balance?
>
> Thanks,
> James
>
> --------------------------------------------------
> From: "Jamie Calder" <jcalder3@cfl.rr.com>
> Sent: Sunday, February 28, 2010 3:36 AM
> To: <dakota-truck@dakota-truck.net>
> Subject: Re: DML: Internal vs. External Balance
>
> >
> > The 408 "kit" was sold to me as a balanced kit. Does that mean it
> should
> > have been internally balanced?
> > Still curious how this is done exactly. I know the spec sheet of the
> > pistons state the weight of each one (all 524 - 526 grams).
> > Are 360's externally balanced with the balancer or converter?
> > If a 360 needs a new harmonic balancer or torque converter, how do they
> > determine where counter weight are placed and where do they go?
> >
> > Thanks again,
> > James
> > --------------------------------------------------
> > From: "Gary Hedlin" <superdak@gmail.com>
> > Sent: Saturday, February 27, 2010 11:28 PM
> > To: <dakota-truck@dakota-truck.net>
> > Subject: Re: DML: Internal vs. External Balance
> >
> >>
> >> Usually an engine that's been worked on has had the internals balanced
> >> (rods,pistons, crank) prior to assembly. An external balanced engine
> >> uses counterweights on the converter or harmonic balancer. Most of
> the
> >> time... Unless the engine builder is a complete idiot (experience from
> a
> >> 340 project Im working on).
> >>
> >>
> >> Gary Hedlin
> >> Sent from my iPhone
> >>
> >> On Feb 27, 2010, at 8:41 PM, "Jamie Calder" <jcalder3@cfl.rr.com>
> wrote:
> >>>
> >>> How are internal rotating assemblies balanced?
> >>> And external?
> >>> Can a visual inspection clearly tell weather a 408 short block is
> >>> internally or externally balanced? (got to answer some ebay q's)
> >>>
> >>> Thanks,
> >>> James
> >>
> >
>
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