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Click on image for the lowdown. 
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| | | Forums66 Topics128,140 Posts1,056,776 Members48,454 | | 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: Jan 2014 Posts: 3,690 'Bolter | | 'Bolter Joined: Jan 2014 Posts: 3,690 | Looking at a truck. Would the standard 6 cyl offering in a truck this size be a 261 or 235?
Can't seem to find the spec sheets on the old Chevy manual site.
1951 3100
| | | | | Joined: Dec 2015 Posts: 2,063 Big Bolt Forum Moderator | | Big Bolt Forum Moderator Joined: Dec 2015 Posts: 2,063 | Correct Tim, "Viking 60" was the designation for the 6xxx series. | | | | | Joined: Jan 2014 Posts: 3,690 'Bolter | | 'Bolter Joined: Jan 2014 Posts: 3,690 |
1951 3100
| | | | | Joined: Mar 2016 Posts: 170 'Bolter | | 'Bolter Joined: Mar 2016 Posts: 170 | In truth, after 59 years you could find just about anything under the hood. Are you familiar with the "captain bars" on the block of the 261? Makes for an easy distinction. | | |
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