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thickness; '69/earlier 440 forged steel versus 426 HEMI
#1589239
03/07/14 04:49 PM
03/07/14 04:49 PM
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Joined: Aug 2003
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Houston, Tx
hemi68charger
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Hello All, Looking to see what the difference in thickness of the 69 and earlier440 steel crank dampner versus the OEM 426 HEMI. I bought a set of 69 and later hemi pulleys. MY 426 HEMI has a 440 steel rotating assembly, hence the thinner dampner. I need to fabricate a spacer. I bought the spacer w/bolts sold by Hoovers Auto, but it is too thin. Thanks again for all the help on this latest project of mine... 
TroyHouston Mopar Connection Club'69 Charger Daytona 440 - auto - 4.10 Dana (now with 426 hemi) '69 Charger 500 440 - 4speed - 3.54 Dana '70 Road Runner 383 - 4speed - a/c (now with 440)
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Re: thickness; '69/earlier 440 forged steel versus 426 HEMI
[Re: hemi68charger]
#1589240
03/07/14 05:34 PM
03/07/14 05:34 PM
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JohnRR
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Ok re read , you are using Hemi pulleys on a wedge balancer , Mopar used to sell ... still sells ? .... a spacer because they put a wedge balancer on crate Hemis , if I remember right it's 3/4" thick.
You could have saved yourself a bunch of money and used wedge pulleys , only you and your hairdresser would have known ...
Last edited by JohnRR; 03/07/14 05:38 PM.
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Re: thickness; '69/earlier 440 forged steel versus 426 HEMI
[Re: JohnRR]
#1589241
03/07/14 11:03 PM
03/07/14 11:03 PM
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hemi68charger
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Quote:
Ok re read , you are using Hemi pulleys on a wedge balancer , Mopar used to sell ... still sells ? .... a spacer because they put a wedge balancer on crate Hemis , if I remember right it's 3/4" thick.
You could have saved yourself a bunch of money and used wedge pulleys , only you and your hairdresser would have known ...
Thanks John. Your input is appreciated. But, I am pretty much bald, so I could give a rats hiney what any potential hairdresser thinks. Secondly, I am the most important person and I do want it to look as OEM correct as possible, period.. I will investigate the 3/4 spacer. Didn't see anything earlier in the catalog.
TroyHouston Mopar Connection Club'69 Charger Daytona 440 - auto - 4.10 Dana (now with 426 hemi) '69 Charger 500 440 - 4speed - 3.54 Dana '70 Road Runner 383 - 4speed - a/c (now with 440)
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Re: thickness; '69/earlier 440 forged steel versus 426 HEMI
[Re: JRepucci]
#1589245
03/08/14 01:00 PM
03/08/14 01:00 PM
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hemi68charger
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Thanks Jason........ I appreciate the info and you taking the time to take the pictures.....
TroyHouston Mopar Connection Club'69 Charger Daytona 440 - auto - 4.10 Dana (now with 426 hemi) '69 Charger 500 440 - 4speed - 3.54 Dana '70 Road Runner 383 - 4speed - a/c (now with 440)
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Re: thickness; '69/earlier 440 forged steel versus 426 HEMI
[Re: Triggerfish]
#1589247
03/08/14 06:30 PM
03/08/14 06:30 PM
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Thanks guys.... Can someone take a measurement of the thickness of the main part of the balancer? I am taking it the both a 440 and 426 dampner would be inserted into the timing chain cover is about the same. I am thinking the difference in thickness between the two is the thickness I need?
I see there are sites with difference thickness and someone replied on a post here on moparts stating he could make custom thicknesses...... I looked again this morning for the item John mentioned about the 3/4" thick spacer from Mopar, but couldn't find it.....
TroyHouston Mopar Connection Club'69 Charger Daytona 440 - auto - 4.10 Dana (now with 426 hemi) '69 Charger 500 440 - 4speed - 3.54 Dana '70 Road Runner 383 - 4speed - a/c (now with 440)
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Re: thickness; '69/earlier 440 forged steel versus 426 HEMI
[Re: JRepucci]
#1589249
03/09/14 01:29 AM
03/09/14 01:29 AM
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hemi68charger
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Quote:
The difference between the 2 measurements is 11/16...give or take the tongue on a metal tape measure 3/4 would suffice.
Thanks Jason.....
I put a straight edge to the front face of the water pump pulley and positioned it down to the crank pulley. The distance from the leading edge of the water pump pulley and the front rim of the aft pulley on the crank was about 3/4's of an inch. So, looks like the .750 spacer is what I need... The water pump pulley lines up with the alternator pulley well....... Sooooooo, now the search for a 3/4" spacer....
TroyHouston Mopar Connection Club'69 Charger Daytona 440 - auto - 4.10 Dana (now with 426 hemi) '69 Charger 500 440 - 4speed - 3.54 Dana '70 Road Runner 383 - 4speed - a/c (now with 440)
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Re: thickness; '69/earlier 440 forged steel versus 426 HEMI
[Re: JRepucci]
#1589251
03/09/14 09:05 PM
03/09/14 09:05 PM
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Pangaea
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Quote:
The difference between the 2 measurements is 11/16...give or take the tongue on a metal tape measure 3/4 would suffice.
Tape measures are designed with a 'tongue' that moves so when measuring inside or outside, the distance is the same.
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Re: thickness; '69/earlier 440 forged steel versus 426 HEMI
[Re: sthemi]
#1589252
03/09/14 11:04 PM
03/09/14 11:04 PM
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Quote:
Why dont you just put a Hemi balancer on it? These are evenly balanced around the diameter unlike cast crank motors.
Since Mopar used 440 balamcers on Hemis, you should be able to go the other way.. 
Being that I don't know the dynamics of it all, I would have to ask the guy I got the motor from. But, in all honesty and this is not a smart-ass question; why is the dampner on a Hemi so much bigger than the dampner of a 440 HP of '69? There has to be a reason....... I am truly trying to learn and not make unwise decisions.
Last edited by hemi68charger; 03/09/14 11:05 PM.
TroyHouston Mopar Connection Club'69 Charger Daytona 440 - auto - 4.10 Dana (now with 426 hemi) '69 Charger 500 440 - 4speed - 3.54 Dana '70 Road Runner 383 - 4speed - a/c (now with 440)
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Re: thickness; '69/earlier 440 forged steel versus 426 HEMI
[Re: hemi68charger]
#1589253
03/11/14 12:58 PM
03/11/14 12:58 PM
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JohnRR
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Quote:
I am the most important person and I do want it to look as OEM correct as possible, period.. I will investigate the 3/4 spacer. Didn't see anything earlier in the catalog.
If that is the case there is nothing even remotely stock Hemi looking about a wedge balancer , pony up the 400 bucks and buy the right balancer then ??? 
problem solved ...
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Re: thickness; '69/earlier 440 forged steel versus 426 HEMI
[Re: hemi68charger]
#1589254
03/11/14 02:45 PM
03/11/14 02:45 PM
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Lakewood, WA
rick@laysons
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Quote:
why is the dampner on a Hemi so much bigger than the dampner of a 440 HP of '69? There has to be a reason......
I think it has to do with the weight of the rotating mass. The rotating mass of the hemi is greater than the rotating mass of the 440, so the hemi has to have a dampner with more mass to account for the greater weight.
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Re: thickness; '69/earlier 440 forged steel versus 426 HEMI
[Re: rick@laysons]
#1589255
03/11/14 03:17 PM
03/11/14 03:17 PM
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Quote:
Quote:
why is the dampner on a Hemi so much bigger than the dampner of a 440 HP of '69? There has to be a reason......
I think it has to do with the weight of the rotating mass. The rotating mass of the hemi is greater than the rotating mass of the 440, so the hemi has to have a dampner with more mass to account for the greater weight.
That is my logic too responding to the suggestion of ject replacing the 440 dampner with a HEMI dampner when the crank and rods in the hemi are from a '69 440 HP.....
TroyHouston Mopar Connection Club'69 Charger Daytona 440 - auto - 4.10 Dana (now with 426 hemi) '69 Charger 500 440 - 4speed - 3.54 Dana '70 Road Runner 383 - 4speed - a/c (now with 440)
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Re: thickness; '69/earlier 440 forged steel versus 426 HEMI
[Re: rick@laysons]
#1589257
03/11/14 03:28 PM
03/11/14 03:28 PM
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Quote:
But the hemi pistons are heavier than the wedge pistons.
Adds fuel to "can't just swap out dampners"......
I think I may have gotten what I need.. I'll see here in the next couple of days.......
TroyHouston Mopar Connection Club'69 Charger Daytona 440 - auto - 4.10 Dana (now with 426 hemi) '69 Charger 500 440 - 4speed - 3.54 Dana '70 Road Runner 383 - 4speed - a/c (now with 440)
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Re: thickness; '69/earlier 440 forged steel versus 426 HEMI
[Re: rick@laysons]
#1589258
03/11/14 03:34 PM
03/11/14 03:34 PM
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JohnRR
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Quote:
But the hemi pistons are heavier than the wedge pistons.
And added to the mix is he used 440 rods which are shorter than hemi rods so he either has a heavier piston because it is .100 or so taller , or he has lower compression because the piston isn't up as high as it should be ... unless he used a 12.0 piston ? then there was the weight added to the crank to balance for a hemi ???
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