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Old 03-30-2004, 09:36 PM
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harmonic damper ?

I have been reading the old posts and havent really found the answer to my question. when i was taking my 283 apart the pulley on the crank had a rolled lip, not really a balancer i dont think. So I am buying more parts and I trying to decide if i need to buy a harmonic damper (summit sell a oem style damper in 6.76" and 8" for mild motors like mine for $60ish) or if i should install what came off the motor. I just did a mild rebuild, no balancing, and i dont want my motor to rattle apart after a year or two.
Any input would be great
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Old 03-30-2004, 10:07 PM
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I would have to say yes you need a new one because the engine in my truck has been rebuilt but the damper has shifted, don't know if the outer band slipped, or it slipped on the crank, but both can happen.
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Old 03-30-2004, 10:12 PM
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A stock rebuild will not require a new balancer. THE OLD 283's had more of a hub than a true balancer. If you do decide to use a new balancer the smaller of the two mentioned will do just fine. Just get matching timing tab and be prepared to modify or remove the old welded on tab.
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Old 03-31-2004, 12:14 PM
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i just looked at the summit balancer again and it said a max rpm of 4500, I plan on taking the engine above that once in a while, it wont explode on me will it?
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Old 03-31-2004, 03:26 PM
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Probably not, they just have to cover their donkey! These are all made across the pond now days and some are questionable quality. They all seem to be too small ID wise. We usually have to hone them a bit to fit. We were getting a few split ones from customers that tried to fit them right out of the box.

If you are going to buzz that 83, you better drill and tap the crank for a bolt! A balancer car do moocho damage leaving the scene at 6000 rpm.
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