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Click on image for the lowdown. 
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| | | Forums66 Topics128,095 Posts1,056,078 Members48,433 | | 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: Jun 2014 Posts: 20 New Guy | | New Guy Joined: Jun 2014 Posts: 20 | I've started assembling my 1961, 235 engine. #3 main bearing cap has what appears to be an 1/8th inch pipe threaded hole. What is this threaded hole for? I do not remember if there was an oil line connected to this or if anything for that matter. | | |
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