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| | | Forums66 Topics128,091 Posts1,056,036 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 2005 Posts: 388 Shop Shark | | Shop Shark Joined: Jun 2005 Posts: 388 | Is your 261 set up for a full flow or bypass oil filter? The full flow filter needs at least 3/8 pipe thread fittings. The 1/8 fittings are used with the bypass filter. I believe that the late 261s that came with full flow filters used 1/2 pipe fittings.
Sounds like you have a great engine. Welcome to the Bolt!
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