Internal/external balancing ???
05-22-2012, 11:51 PM
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Car: '92 RS
Engine: GM 350 swap
Transmission: T-5
Internal/external balancing ???
So I have my 350 bored .30 over, a brand new 383 kit from eagle that is balanced. I'm looking for a new harmonic balancer.
My research shows that 400sb is externally balanced. Since it's a "400" crank does that mean it needs to be internally/externally balancing... balancer? Or do I pick the "Engine Balance: Internal" on summit?
My research shows that 400sb is externally balanced. Since it's a "400" crank does that mean it needs to be internally/externally balancing... balancer? Or do I pick the "Engine Balance: Internal" on summit?
05-23-2012, 12:08 AM
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Car: '92 RS
Engine: GM 350 swap
Transmission: T-5
Re: Internal/external balancing ???
Nevermind... Straight from Eagle Specialty Products' website:
"You can also notice the contents of the kit. An internally balanced kit will not include a harmonic dampener or flywheel because they are not required for balancing - use whatever brand you like. Externally balanced kits will include a harmonic dampener and/or flexplate as needed. If we provide a harmonic dampener and flexplate it will be a O.E. style replacement, not SFI approved. If you building a high horsepower engine, internal balance is preferred anyway. Internal balance is better for longevity of parts and fatigue life."
"You can also notice the contents of the kit. An internally balanced kit will not include a harmonic dampener or flywheel because they are not required for balancing - use whatever brand you like. Externally balanced kits will include a harmonic dampener and/or flexplate as needed. If we provide a harmonic dampener and flexplate it will be a O.E. style replacement, not SFI approved. If you building a high horsepower engine, internal balance is preferred anyway. Internal balance is better for longevity of parts and fatigue life."
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