Re: Is this a 360 balancer?
[Re: tmef]
#2109986
07/14/16 04:23 PM
07/14/16 04:23 PM
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Joined: Jan 2003
Posts: 75,020 U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,020
U.S.S.A.
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What year is the engine ? I have had some early 70's 360's and they didn't have a balancer like that .
The bad thing with that balancer is once the rubber goes bad enough to allow the other ring to slip the engine will also be out of balance .
running up my post count some more .
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Re: Is this a 360 balancer?
[Re: tmef]
#2110370
07/15/16 04:45 AM
07/15/16 04:45 AM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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I would want to find out if it had been balanced. best would be to neutral balance it on both ends so to speak with a neutral dampener then as said you can swap commmon neutral aftermarket converters as desired or with an external dampener he can still neutral balance it for a neutral TC or if he makes it external balanced then use the 10239 B&M scalloped flexplate (for a 904) then you can still use any neutral converter
live every 24 hour block of time like it's your last day on earth
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Re: Is this a 360 balancer?
[Re: tmef]
#2112551
07/18/16 04:31 PM
07/18/16 04:31 PM
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Joined: Jan 2003
Posts: 1,255 Columbus, GA
Michael Ecks
pro stock
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pro stock
Joined: Jan 2003
Posts: 1,255
Columbus, GA
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As already stated it is a late 360 balancer. Not sure what year, but at some point the engineers realized they could remove the old style eccentric weight and hollow out the same amount of material from the opposite side of the outer ring and have the same balancing effect while reducing rotating weight. So, your part is "good-er" for that engine. Double check your pistons, I don't think Silvolite//KB makes the H405P's. If I recall correctly the 405Ps are a stock weight replacement for the 360, so there should be no need to have the engine re-balanced as long as you have the offset weights on the converter or a weighted flexplate.
"The happiness of your life depends upon the quality of your thoughts" ~ Roman Emperor Marcus Aurelius
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Re: Is this a 360 balancer?
[Re: dogdays]
#2114991
07/21/16 06:09 PM
07/21/16 06:09 PM
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Joined: Feb 2005
Posts: 672 Wichita, KS
tmef
OP
mopar
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OP
mopar
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Posts: 672
Wichita, KS
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The "S" is for "Sterling" which is probably the company who made that particular piston many years ago, or else was a trade name.
R. Oh yes, forgot about Sterling. Good to know. Thank you. Other parts with paperwork I got with this truck makes me believe the engine was done in 1997.
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Re: Is this a 360 balancer?
[Re: tmef]
#2115138
07/21/16 10:00 PM
07/21/16 10:00 PM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
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Lincoln Nebraska
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My H405P's are Sealed Power & are 1.637 CH with 10 CC valve reliefs & were .037" in the hole on my 360
live every 24 hour block of time like it's your last day on earth
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Re: Is this a 360 balancer?
[Re: Michael Ecks]
#2115981
07/23/16 04:39 AM
07/23/16 04:39 AM
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Joined: Jan 2005
Posts: 3,699 Newport, Mi
Evil Spirit
master
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master
Joined: Jan 2005
Posts: 3,699
Newport, Mi
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[quote=Michael Ecks]As already stated it is a late 360 balancer. Not sure what year, but at some point the engineers realized they could remove the old style eccentric weight and hollow out the same amount of material from the opposite side of the outer ring and have the same balancing effect while reducing rotating weight. So, your part is "good-er" for that engine.
I wouldn't agree the "scalloped" dampeners are "good-er" for any level of a performance build. The imbalance is moved outside of the elastomer bond, placing more stress on it, and they are prone to the outer ring walking around when used on engines that see much use over 5000rpm, especially as the dampener ages and the elastomer deteriorates. The style with the counterweight cast on as part of the center hub doesn't have that issue, and will keep the outer ring in place in the event of elastomer failure. So while the scalloped dampener may reduce reciprocating weight, IMO it is the poorer choice in the long run - both reliability and safety wise.
In some ways this is a moot point, because a performance build should be running some level of an aftermarket performance dampener.
Free advice and worth every penny... Factory trained Slinky rewinder.........
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Re: Is this a 360 balancer?
[Re: Evil Spirit]
#2116091
07/23/16 12:30 PM
07/23/16 12:30 PM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
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Lincoln Nebraska
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Evil, VG info, I woulda never thought of that! Ma would of had to of had a learning curve like we all do
live every 24 hour block of time like it's your last day on earth
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Re: Is this a 360 balancer?
[Re: RapidRobert]
#2116156
07/23/16 03:08 PM
07/23/16 03:08 PM
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Joined: Jan 2005
Posts: 3,699 Newport, Mi
Evil Spirit
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master
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Newport, Mi
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Evil, VG info, I woulda never thought of that! Ma would of had to of had a learning curve like we all do IMO they went the wrong direction, since they went from the weight on the balancer hub to the earlier ones to the scalloped outer weight on later engines. Probably a cost saving move to pinch pennies. It's also possible that the engineers saw some type of harmonics advantage to the scalloped style dampener. But any of the aftermarket dampeners that I have seen that have the 360 balance weight - there are a few that are zero balance and you add a cast crank 340 or a 360 weight as needed - it is always mounted to the hub side.
Free advice and worth every penny... Factory trained Slinky rewinder.........
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