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Click on image for the lowdown. 
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| | | Forums66 Topics128,068 Posts1,055,883 Members48,428 | | 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: Mar 2005 Posts: 1,513 'Bolter | | 'Bolter Joined: Mar 2005 Posts: 1,513 | Hey Jeff,
I have both an early and late 261 short block handy and the pushrod holes are 5/8" dia. in both. Holes in an 848 head are .550"dia.
1952 1300 Canadian 1/2 ton restomod You Tube | | |
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