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Click on image for the lowdown. 
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| | | Forums66 Topics128,032 Posts1,055,519 Members48,425 | | 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: Dec 2000 Posts: 3,399 Gas Pumper | | Gas Pumper Joined: Dec 2000 Posts: 3,399 | I added the bore size formula and the numbers in chart format to the document. There are a few things left to work on, but it's a start! http://devestechnet.com/Home/TheVenerable261Happy reading! The 235 numbers are there too. | | | | | Joined: Sep 2006 Posts: 2,393 Shop Shark | | Shop Shark Joined: Sep 2006 Posts: 2,393 | Deve, Working with a 261 now. I like that info. Very handy.
Drew
| | | | | Joined: Sep 2010 Posts: 695 Shop Shark | | Shop Shark Joined: Sep 2010 Posts: 695 | Thanks for all the great 261 info, Deve!
Jerry | | |
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