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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!
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| | | | Joined: Jun 2020 Posts: 5 'Bolter | | 'Bolter Joined: Jun 2020 Posts: 5 | Any guidance on how to move oil full flow dowel to the IN position? I have a 1957 261 with the dowel in OUT bypass position. As I rebuild, I would like to go to a full flow filter.
1957 Chevrolet 6400
| | | | | Joined: Feb 2004 Posts: 29,756 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,756 | They're supposed to be able to be driven in with a hammer and a drift punch. If it's hard to move, a little heat and a bit of penetrating oil might be a good idea. If the inside of the crankcase is flat enough, a C clamp and a socket the right size to push the plug in might be a less dramatic method of getting it to move. Once it's pushed in, getting it back out for some reason might be a bit of a challenge. One of my 261's has the bypass plug, and I'm considering trying to drill and tap the plug so it can be moved out as well as in. I'm also considering threading the hole in the block and making a screw-in bypass plug from a socket head Allen Bolt. That one will have both full flow and bypass oil filtering.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Sep 2011 Posts: 1,453 'Bolter | | 'Bolter Joined: Sep 2011 Posts: 1,453 | Any reason you couldn't tap & put a plug in the galley as per the full flow conversion on a 236 ( http://devestechnet.com/Home/FullFlowOil). Been running a 235 plumbed that way for many years.
BC
1960 Chevy C10 driver 261 T5 4.10 dana 44 power loc
1949 GMC 250 project in waiting
1960 C60 pasture art
Retired GM dealer tech. 1980 - 2022
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