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Old May 27, 2021 | 08:35 AM
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Default Harmonic balancer

What determines which harmonic balancer to use on your build? I'm building a 6.0L with the Summit Stage 4 truck cam and probably trickflow or brodix 220 heads. Which balancer should I use? Truck is an 05 silverado single cab short bed

Last edited by Michael Gerace; May 27, 2021 at 08:36 AM. Reason: Additional info
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Old May 27, 2021 | 10:08 AM
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Which accessory spacing are you using? Truck/late F-body? Vette? 4th-gen F-body?
That will decide which one to use
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Old May 27, 2021 | 08:06 PM
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I was meaning like fluidamper, ATI, Rattler,OEM,.etc. I always thought it was more about the way the engine was used. Never thought of it the way you put. Thanks!!!
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Old May 27, 2021 | 08:16 PM
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ATI Super Damper hands down. Expensive, rebuildable and totally worth it!
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Old May 28, 2021 | 10:21 AM
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Stock damper will work okay for a street car that spends little time at full throttle, but it's going to struggle to control torsions with increased power. You'll need to watch the condition of the rubbers and replace every so often.

The Fluidamr damper has a wide operating range where it provides torsional damping.

The ATI damper doesn't have the same useful operating range, but they can fine-tune to provide better protection in a defined operating range. Don't order out of the catalog. Call them up and walk through what you have and they'll select a set of rubbers suitable for your engine combo. Under driven pulley will require higher durometer rubbers too. ATI rubbers do need replacement about every 5 years, or sooner depending on your power level. They charge about $75 to service rubbers.
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Old May 31, 2021 | 02:34 PM
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The reason G Atsma asked what he did is, the different accessory drive systems are a different height off of the block. A truck damper won't work with F-body WP etc., or vice-versa. Gotta match the part to the accessory drive as well as intended usage.
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Old Jun 1, 2021 | 12:08 PM
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Yes to ATI if it’s in your budget. Summit, Pro Race or the many others for lower budget, just get one with SFI cert and proper spacing as mentioned.
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