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Mod | | | Forums66 Topics128,056 Posts1,055,789 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: Feb 2026 Posts: 9 'Bolter | | 'Bolter Joined: Feb 2026 Posts: 9 | Hi all,
I have a ‘54 Chevy 3100 with the original 235 that I’m putting back together several years (30+) after an out of frame rebuild. It has a coolant port mid block on the driver’s side just ahead of the throttle bell crank. It is tapped for a 5/16 course threaded bolt. Does anyone know what this port is for and why it would be tapped for standard bolt threads rather than NPT?
Thanks,
Doug | | |
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