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| | | Forums66 Topics128,031 Posts1,055,434 Members48,422 | | 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!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Dec 2008 Posts: 1,922 'Bolter | | 'Bolter Joined: Dec 2008 Posts: 1,922 | Someone asserted (elsewhere) that the same "freeze" plug is used on all stovebolt (216, 235, 261) and GMC (248, 270, 302) engines.
I don't have access to GMC, but based on the photos the GMC are smaller.
I suspect both are something common, like other GM of the same age, but...?
Does anyone have the modern part numbers, source, or actual size for either one?
Thanks. | | | | | Joined: Jul 2001 Posts: 3,887 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Jul 2001 Posts: 3,887 | expansion plug sizes will be listed here for each engine ... they'll be 'common' to the range of sizes available at any parts store, not identical for every GM engine Bill | | | | | Joined: Dec 2008 Posts: 1,922 'Bolter | | 'Bolter Joined: Dec 2008 Posts: 1,922 | | | |
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