Has anyone out there in Hipo land seen or bought the CJ Pony repop item they offer for near 300 bucks? They claim it took 2 yrs to get it right. Never having seen the genuine article myself (I've a C8xxx service item on my engine), I can't tell if their offering is truly accurate in texture, marking, and appearance to the geenie item. I do notice the rear edge is chamfered however.
Repop Vibe Dampner
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I don't know about the one that CJ is selling, but I do know that the Damper Doctor where I sent my original for a rebuild was in the process of making a correct repro, might want to check with them....
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Jim Cowles at Shelby Parts and Restoration also sells one for about the same price. I believe the ebay link below is from Cobra Automotive. Not sure if they are all from the same source....
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- Official Post
A friend of mine supplied the original balancer off of his Hertz Shelby for the manufacturer to repro these. I have one in my hands now and I compared it to an original C5OE. Except for not have the C5OE number stamped on the center hub and a date code next to the timing marks, it is really correct. He is willing to let me sell them to the people on this forum for $250.
-Fred-
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Jim Cowles said these dampers are balanced to 28 oz.in. which incorrect for the 289 Hipo. If you plan on using one of these dampers I highly recommend that you check the balance of your engines rotating assembly.
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- Official Post
What is the problem with a 28 oz. offset on the balancer? To my knowledge, that is correct for a Hipo 289. I just rechecked that specification with Valley Head Service who did most of the hot rod head work for Shelby back in the day.
-Fred-
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Has anyone inquired to the Damper Doctor as to what they have available?
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Quote from C6ZZKGT
What is the problem with a 28 oz. offset on the balancer? To my knowledge, that is correct for a Hipo 289. I just rechecked that specification with Valley Head Service who did most of the hot rod head work for Shelby back in the day.
-Fred-
The balance spec for the 289 hipo only damper is 24.5 oz.in.
C3OE-6A360-B counterweight is 5.9 oz.in.
289 hipo only flywheel/flex plate is 30.4 oz.in.
All non hipo 289 dampers, flywheels, & flex plates 28.2 oz.in.
All spec's are from Ford engineering drawings.
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Champering on the rear is correct Charlie.
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Sorry for bringing up this old post again, but what is the balance of the replacement dampers? 28 oz, or the Hipo specific 24.5 oz?
I'm using a replacement on my non-Hipo 289 without the extra counterweight. The whole assembly is balanced, so I'm not really worried about unbalance, but just curious. I do recall that the balancing shop mentioned that they had to make a lot of corrections.
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When I lived in Sweden and hadn't found a HiPo 289 for my 67
Shelby yet, I used a standard 289 engine and put a HiPo damper
and the counter weight on it and didn't re-balance it.
Never had any problems. Then in 1981 I found two genuine HiPo's
a 65 (August 64 assembly date) and a 67 with HEH-BX transmission
and clutch equilizer bar etc. Use the 65 engine and 67 trans, clutch
etc. in my car.Sold the 67 engine and it's in a 66 HiPo Mustang now.
/Bo
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