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Click on image for the lowdown. 
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| | | Forums66 Topics128,018 Posts1,055,340 Members48,419 | | 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
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on the Internet for over 30 years! and not clogged down
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#56479 02/17/2006 6:58 PM | Joined: Apr 2002 Posts: 1,571 Shop Shark | | Shop Shark Joined: Apr 2002 Posts: 1,571 | Doc, almost all factory PCV systems (including the ones used on late 30s-late 50s GMCs) used a valve cover fitting. If you're that worried about it, a small baffle can be welded to the inside of the valve cover under the hole. | | |
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