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Mod | | | Forums66 Topics128,035 Posts1,055,560 Members48,426 | | 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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| | | | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | I got to thinking and 1941-47 did not use valve seals originally.
They had a cap/hat that covered the top of the valve and retainer. This ran the oil off the outside of the spring.
Over the years these caps get removed. If the valves are not converted to a seal either umbrella or 1948 or later stem o-ring you will get too much oil down the stems.
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