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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!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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on the Internet for over 30 years! and not clogged down
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| | | | Joined: Aug 2005 Posts: 6,377 Ex Hall Monitor | | Ex Hall Monitor Joined: Aug 2005 Posts: 6,377 | The normal hole in the end of the oiler is to allow excess oil to escape when the rocker shafts are full. It looks to me like someone's attempt to increase the oil pressure to the rockers by restricting the overflow. Will it hurt anything? Probably not. The rocker oiling system isn't tight enough to hold high pressure anyway.
Save a life, adopt a senior shelter pet.
The three main causes of blindness: Cataracts, Politics, Religion.
Name your dog Naked so you can walk Naked in the park.
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