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Mod | | | Forums66 Topics128,040 Posts1,055,478 Members48,424 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Oct 2005 Posts: 1,317 Shop Shark | | Shop Shark Joined: Oct 2005 Posts: 1,317 | I'm running a two-groove modified 250 cid harmonic balancer on my 235. It was purchased from Buffalo Enterprises (Steve) and required the use of a Felpro quick sleeve on the seal surface as well as balancing. I was a bit skeptical of the suggestion of getting it balanced but after seeing the material removed to get it down to .3 of a gram I understood what was meant.
The balancer is drawn on by using a small block Chevy balancer bolt available at most parts suppliers. I don't recall the exact drill sizes but would caution you to only go about 5/8" deep. My crank drilled very easily with a hand held power drill. I used a longer fine threaded stud to draw the balancer down.
BTW....the balancer and balancing was right at $240.00. No bargain but worth every penny to run a/c, p/s, and an alternator.
Dave | | |
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