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| | | Forums66 Topics128,037 Posts1,055,468 Members48,424 | | 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: Oct 2006 Posts: 1,847 'Bolter | | 'Bolter Joined: Oct 2006 Posts: 1,847 | fine thread bolts aren't 1/4" NPT, 9/16", and 5/8" have the same thread pitch, but I don't really know about diameter, the taps are quite different in size. Are you sure it is a bolt? What to the threads look like in the block? | | |
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