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Discussion Starter · #1 ·
So it's seems to have slowed down here on Digital Corvettes so I thought instead of my occasional post or question I would try to document my build progress forward. The "bones" of my project, which I bought in 2005, is a 1977 coupe. It showed less than 10K miles and was sitting in a little museum in Arkansas. I did believe the miles because parts of the car were like new, others, not so much. It looked like it had been put away with a leaking coolant hose, so many of the under-hood parts had rusted, the interior had "10K miles of a heavy smoker", all four brake calipers had leaked, and it was sitting on original tires. Even though I was less than happy with the overall condition, I made him a lowball offer and he took it. So my test drive was once around the parking lot and onto the trailer. We were just into Missouri when the 1st tire went down and by the time we were back to Iowa we had lost the 3rd.

So, when I say "bones" it means the basic frame and the shell, less the OEM flex front and rear bumper covers. My current rolling chassis includes a RideTech coil-over suspension, Wilwood Big Brakes front and rear, LS376/480 & 4L70E tranny, coated Melrose headers, Borgeson steering, new EFI tank. So except for some minor plumbing and muffler / tail pipes fab it's in good shape. I also have Vintage Air and Dakota Digital Gauges ready for the interior when i get there.

Tire Wheel Vehicle Automotive tire Tread
 

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Discussion Starter · #7 ·
Triple dizzle - it's been on and off my radar for several years. When I say "on" it means I've looked at part selection and pricing, when I say "off" it means I'm 66 and forget **** !

My 2010 C6 (stock LS3) is now 12 years old with 13K miles with no detectible wobble. But at this point, with such easy access on my 77 build, it makes sense to upgrade (so thanks for the push). It's just more money - I quit keeping track years ago (or at least that's what I keep telling myself).
 
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Discussion Starter · #10 ·
Wow, thought I had part numbers saved for several different manufacturers harmonic balancers but after re-reading multiple threads I'm not sure of my data. I believe what I want is a OEM diameter +/- 7.5", "corvette" depth (1.5"), so with air conditioning I need a 6 groove front, and a 4 groove rear pulley. I'm thinking a PowerBond PB1117SS or ATI 917266 - probably go with the ATI since there are many threads discussing the PB 1117SS and how the pictures all over the net do not reflect the part you receive. I know why this happens but it shouldn't be so hard to validate what you getting when you place an order.

zimmej51 - I did a "limited" review of your build thread but didn't notice a p/n for your balancer selection - if it's easy to come up with I'd take it but if it's work don't bother. Thanks for your input guys.
 

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Discussion Starter · #12 ·
Hey zimmej51 - don't spend any time looking. If the pulley was a Vintage Air bolt-on to the damper it won't be the p/n I was looking for.. I spent time trying to find the right serpentine belt after changing the power steering pump pulley so I'll need to stick with the current OEM diameter w/ pullies. But thanks - was planning to use the ARP bolt.
 

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Discussion Starter · #13 ·
To follow-up on the harmonic damper upgrade I picked the ATI p/n 917266, 6 rib, OEM diameter, with A/C 4 rib pulley, As expected, for the price, it's a very nice piece - with a $ 50 discount I got it for $ 385. Bought a new timing cover seal $ 27, and balancer bolt $ 34. As far as tools I learned years ago not to skimp on cheap tools not made specifically for my task so I bought an installation tool $ 51, an LS flywheel locking kit $ 14, and a 3 jaw puller for the stock balancer removal $45. Unfortunately after my purchases I realized my 1/2 torque wrench is 150 ft lbs max. The new balancer bolt requires 240 ft lbs so I spent $ 100 on a new torque wrench. In hindsight, although the bolt is reusable, i might have gone OEM on the new bolt (1 time use only) which would have saved me needing a new torque wrench. On the positive side, since i now have all the tools, I might just do my 2010 C6 before I sell the specialty tools.
 

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Discussion Starter · #15 ·
10-4 on the lift Dizzle - pretty sure I wouldn't attempt the C6 job without one. I have a 4 post, 2 post would be better for the damper job since the steering rack has to be removed. However that lift was one of my best purchases ever. It has paid for itself many times over and helped enable my 1 man shop..
 

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Discussion Starter · #17 · (Edited)
Installed the new ATI harmonic balancer yesterday - I had already assembled it so total time was about an hour and 25 minutes (concurrent with a sandwich and beer.). Required removal of the starter to place the flywheel locking device, pulling the OEM balancer, and the installation of the new balancer. All tools worked as advertised and I was able to get to the 235ft lbs for the ARP balancer bolt with just the new torque wrench - no cheater bar. As Dizzle had posted - great piece of mind and at this stage of the build (totally exposed) it was a cake walk unlike many other tasks

. Automotive tire Camera lens Cameras & optics Rim Plant
 
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