are 440's internal or external balanced?

[C_stripes]

I need to know ASAP.

[oldkimmer]

.............Yes and no.........depending on the year.......66-72 forged usually...........73 up cast usually unless attached 2 a 4 gear or special application...............kim.............................u can tell a cast by the narrow parting line forged is approx 1/2 in wide...

[Chatt69chgr]

The balancer's are very different.  The forged uses one that is symmetrical all the way around and kind of thin.  The forged uses a balancer with a big cast in weight on one side and is wider and kind of slopes on the outer edge.

[Brock Samson]

six-packs are external.

[Sublime/Sixpack]

I think all 1970 and up 440 "HP" engines are externally balanced.

[John_Kunkel]

The '70 and '71 440 HP engines are externally balanced due to the weight of the "heavy rods", '72 and later (except for the few 440+6) don't need external balance even with the heavy rods because the piston weight is reduced.

[Challenger340]

Why do you need to know ASAP ?

Generally'
the Forged Cranks are Internal Balance with thin Dampers,
and
The Cast Cranks are Externally Balanced with Big Thick or Tapered Balancers.

Exceptions;
69 1/2 & up 440-6 pk Engines with the "Heavy" 6 pk Rods are "Forged Crank" but EXTERNALLY Balanced Balancer(thicker).

As John pointed out,
Mopar was using up the Heavy 6 pk Rod Stock Parts by late '71 in non-hp Engines, those were Forged Crank, (but Internally Balanced due to the Lighter Piston), and had thin Balancers.

gets pretty confusing doesn't it ?

[LeadfootBob]

The late model 440's have a GIGANTIC damper with the words "USE WITH 440 CAST CRANK  ONLY" stamped into the front, impossible to miss.
One does wonder how far these can be spun before turning into something akin to the fragmentation casing on a hand grenade...

[Blown70]

The late model 440's have a GIGANTIC damper with the words "USE WITH 440 CAST CRANK  ONLY" stamped into the front, impossible to miss.
One does wonder how far these can be spun before turning into something akin to the fragmentation casing on a hand grenade...

Yea, I have seen the USE WITH CAST CRANK ONLY, but umm well you do understand some people *think* they know better nowadays......

I can imagine this could/would create some what of a MESS in the engine area....

[C_stripes]

Thanks guys. I got a 64 Dodge 880 383 auto in trade and have the chance to buy a 440 cheap. The 880 needs an engine and I was thinking about the 440 and needed to know if it would work. I guess it probably won't as the old 383's are internal and the 440 is a late model. Here are a few pics of the 880. I got it in trade for a set of slotted mags.

[Sublime/Sixpack]

That old C-body looks pretty solid.

You could make the 440 work in that car, you'd have to go with the correct torque convertor for the 440, or purchase the "weight" and weld it on to the existing torque convertor in the right spot, but it'd work out okay.

[Bobs69]

Any pictures of the balancers?

[Cooter]

Here is the way to identify the Cast from the forged...