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#1
02-26-2005, 11:49 AM
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Can I use my 389 flywheel in a 455 application and if so does it need to be balanced?Thanks in advance for any help.
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65 GTO 4 spd Tri-power Convert 13.64 @ 104.94 2.23 60' 3920# bias ply tires |
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#2
02-26-2005, 11:49 AM
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Can I use my 389 flywheel in a 455 application and if so does it need to be balanced?Thanks in advance for any help.
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65 GTO 4 spd Tri-power Convert 13.64 @ 104.94 2.23 60' 3920# bias ply tires |
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#3
02-26-2005, 12:47 PM
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oops..maybe should have mentioned that it's a 65'389 and a 70' 455...
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65 GTO 4 spd Tri-power Convert 13.64 @ 104.94 2.23 60' 3920# bias ply tires |
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#4
02-26-2005, 03:31 PM
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The flywheel will swap, no balancing should be required.
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1964 Tempest Coupe LS3/4L70E/3.42 1964 Le Mans Convertible 421 HO/TH350/2.56 2002 WS6 Convertible LS1/4L60E/3.23 |
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#5
02-26-2005, 03:37 PM
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Thanks b-man.
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65 GTO 4 spd Tri-power Convert 13.64 @ 104.94 2.23 60' 3920# bias ply tires |
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#6
02-28-2005, 07:08 AM
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If rebuilding the engine, ALWAYS balance it, required or not. You'll thank yourself when it runs so nicely.
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#7
02-28-2005, 08:25 AM
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As an added benefit, you can balance the pressure plate to the flywheel as well. You just need to make a reference paint mark to be able to align the two pieces back exactly as they were balanced. You would be surprised at how much they are out from the factory.
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#8
02-28-2005, 09:24 AM
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The 389 used a 10.5" clutch. Depending on the HP level of your 455 you may want to upgrade to an 11" unit and if so, the Hays billet steel unit is really nice. Just a thought.
Even if you don't have it balanced I'd resurface it and check it thoroughly for cracks that seem to go beyond the disc contact area. |
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