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Mod | | | Forums66 Topics128,169 Posts1,057,037 Members48,458 | | 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: Sep 2006 Posts: 2,393 Shop Shark | | Shop Shark Joined: Sep 2006 Posts: 2,393 | The only thought I have is that when researching in a GM supplied Master Parts Catalog there are many variations of parts numbers to casting numbers and replacement numbers for ALL parts spread over years. I does seem someone replaced one of your rods at some point, but obviously you and your machinist know to weigh and balance each rod. Even just doing at home rebuilds, I weigh the piston and pins and rods and try to get them in close tolerance to each other. It's not ideal as a machine shop would do, but I'm comfortable with it.
Drew
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