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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!
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| | | | Joined: Jan 2008 Posts: 48 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2008 Posts: 48 | We're restoring a 1948 gmc 1 1/2 ton with a 248 engine. There is no exhaust on it. We need to hook up an exhaust pipe but i'm not sure if the flange/coupler/heat riser valve(what's it called?) is the same on all engines, or if there's one specific to the 248 manifold. (it's the original manifold on a '51 engine)
And does anyone know if this part's common enough for Napa or someone to have?
Last edited by turpentyne; 04/15/2008 10:24 PM.
| | | | | Joined: Dec 2003 Posts: 2,733 Shop Shark | | Shop Shark Joined: Dec 2003 Posts: 2,733 | Any good exhaust shop should have all different sizes available and likely NAPA too. I'd bet that all 216, 228, 235 and 248 engines used the same size. | | | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | I think my 216 is either 1 7/8 or 2". I took it to the local exhaust guy that does older stuff and he did a great job. I asked him how long it would take to get the parts and he said that he would have it done in a couple of hours. He had everything on hand. One thing though, he used a doughnut gasket and the truck previously had been put together with a flat gasket. I think that his way was right. | | |
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