BB harmonic balancer suggestions
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Joined: Jul 2004
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From: North Florida Florida
BB harmonic balancer suggestions
Does anyone have a suggestion for a 427 harmonic balancer? So far, most people say go with ATI, but would a different one be better?
Thanks!
Thanks!
Drifting
Joined: Sep 2004
Posts: 1,959
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From: North Bend Ohio
Well, you have high performance dampers and then you got stock dampers. Performance dampers can generally take higher rpm's before they fly apart. They last longer to. The timing marks shouldn't move like they sometimes do on stock ones. Did I mention they cost more?
BigBlockk
Later.....
BigBlockk
Later.....
Race Director
Joined: Dec 1999
Posts: 19,610
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From: Forked River NJ
I am running a Fluid Damper on my SB. It is degreed all the way around so timing is a breeze. The aftermarket dampers are better for any motor turning high rpms. The stock ones are fine for a driver and an occasional blast.
Race Director
Joined: Feb 1999
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From: In Dreams There Is Truth Ohio
Originally Posted by Gordonm
I am running a Fluid Damper on my SB. It is degreed all the way around so timing is a breeze. The aftermarket dampers are better for any motor turning high rpms. The stock ones are fine for a driver and an occasional blast.
Melting Slicks
Joined: May 2001
Posts: 2,131
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From: May help you? You can sure as hell try!
Be aware that 427's had 7" and 8" dampers originally. The hi-perf motors with solid lifters used 8" and the hydraulic lifter motors had 7".
If you have a small 7" diameter damper currently and want to go to 8", you'll either have to cut off your timing tab on your timing gear cover or go with an aftermarket cover and timing tab.
I got a 7" ATI superdamper for my 427 so I wouldn't have to mess with changing the cover and to retain the stock appearance.
For my 496 stroker motor, I'm using an 8" fluidampr.
In general for a given damper design, the larger diameter balancers are more effective at dampening harmonics than a smaller diameter damper but they have more rotating inertia.
Also be aware that 427's are internally balanced so a 454 8" damper won't work.
If you have a small 7" diameter damper currently and want to go to 8", you'll either have to cut off your timing tab on your timing gear cover or go with an aftermarket cover and timing tab.
I got a 7" ATI superdamper for my 427 so I wouldn't have to mess with changing the cover and to retain the stock appearance.
For my 496 stroker motor, I'm using an 8" fluidampr.
In general for a given damper design, the larger diameter balancers are more effective at dampening harmonics than a smaller diameter damper but they have more rotating inertia.
Also be aware that 427's are internally balanced so a 454 8" damper won't work.
