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Click on image for the lowdown. 
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| | | Forums66 Topics128,140 Posts1,056,771 Members48,454 | | 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
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Jan 2019 Posts: 2,242 Herder of Cats, Goats, and Sheep (moderator) | | Herder of Cats, Goats, and Sheep (moderator) Joined: Jan 2019 Posts: 2,242 | The two studs on the outer edge should not be bolted or held in place with nuts.
They are specifically designed to allow expansion of the manifold. This! If you bolt them tight, you will crack the manifold from thermal cycling. | | |
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