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cast 340 damper versus cast 360 damper Same?

Posted By: Kam*Kuda

cast 340 damper versus cast 360 damper Same? - 07/17/08 02:02 AM

Is there any difference between a cast 340 damper versus cast 360 damper

Posted By: MoparforLife

Re: cast 340 damper versus cast 360 damper Same? - 07/17/08 02:18 AM

Not the same. The 340 damper says Cast crankshaft 340 only.

Posted By: MowP4rsn

Re: cast 340 damper versus cast 360 damper Same? - 07/17/08 02:28 AM

They would not be the same due to the 360 having a longer stroke on its crank journals than the 340, requiring different balancing, and the 360 has always been an external balance engine, while I believe the 340 was internal balance, like the 318 for most of its production.

Posted By: 70AARcuda

Re: cast 340 damper versus cast 360 damper Same? - 07/17/08 02:44 AM

Quote:

Not the same. The 340 damper says Cast crankshaft 340 only.

cast crank 340 requires 340 cast crank balancer as noted above

Posted By: Kam*Kuda

Re: cast 340 damper versus cast 360 damper Same? - 07/17/08 11:49 AM

Quote:

Quote:

Not the same. The 340 damper says Cast crankshaft 340 only.

cast crank 340 requires 340 cast crank balancer as noted above

Thank you, thats what I thought. Having a little debate with a mopar friend.

Posted By: UCUDANT

Re: cast 340 damper versus cast 360 damper Same? - 07/17/08 06:01 PM

While looking for one this might help you http://www.moparts.org/Tech/Archive/smallblock/5.html

Posted By: dogdays

Re: cast 340 damper versus cast 360 damper Same? - 07/17/08 06:46 PM

The reason is that the 360 balance weight is about 3 times the 340 cast crank balance weight, not even close.
R.

Posted By: MoparforLife

Re: cast 340 damper versus cast 360 damper Same? - 07/17/08 07:10 PM

Quote:

The reason is that the 360 balance weight is about 3 times the 340 cast crank balance weight, not even close.
R.

Are you sure that it isn't the other way around. The 340 shaft is lighter, swinging the same rod as a 360, and heavier piston than the 360.