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Mod | | | Forums66 Topics128,089 Posts1,056,117 Members48,434 | | 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: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | oil lubrication and filter systems - old post A 58-62 factory full-flow oil filtration system used larger diameter (1/2" NPT) oil lines than the by-pass oil filters used on all other 216/235/261 engines. A '57 261 would have a high-pressure oil lubrication system and a by-pass oil filtration system (with 3/8" oil lines, I think) | | |
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