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Click on image for the lowdown. 
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| | | Forums66 Topics128,107 Posts1,056,221 Members48,436 | | 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!
| | THANKS!
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: Jun 2000 Posts: 2,773 'Bolter | | 'Bolter Joined: Jun 2000 Posts: 2,773 | Jim's right on the redline on these old sixes, but I sure wouldn't run one that fast for very long. Cruising range between 2000 and 3000 rpm, stick in the 2000 to 2500 range for economy and engine life, higher if you are hauling heavy loads uphill.
Fred
52 3600
69 C-10
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