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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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#49767 08/31/2005 4:02 AM | Joined: Jun 2005 Posts: 153 Member | | Member Joined: Jun 2005 Posts: 153 | my exhaust manifold gasket (53 gmc/228/6cyl) is burned out on one cylinder and even though it sounds pretty cool (almost like it has headers), i'm wondering how bad is this?
1. how urgent is it that i replace the gasket?
2. do i have to pull the intake and exhuast manifolds off as a unit?
3. can i replace the manifold gaskets without breaking loose the exhaust manifold-to-exhaust pipe intersection with the donut gasket inside? it is 'welded' shut with heat and rust and the 3 bolts/nuts look like they've sat in acid for a few weeks; totally deformed!
If I can prop up the manifolds from underneath and replace the intake and exhaust gaskets, i think i'd rather do that, but i'm not sure as i've read on here that i'm supposed to have them planed down even before i put them back on.
HELP!
Overland Blue, 1953 GMC 1/2T, 100-22, 228/1bbl, 4sp/4.10 6v, shortbed/fender side/5-window.
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