All ActivityMost RecentMost LikesSolutionsRe: Any advice for replacing exhaust manifold gasket in a 454?Turns out those are the wrong gaskets. This manifold has round ports and those gaskets are oval. Looks like I need a Fel Pro 1412 or Mahle 95100SG. Any idea what heat riser gasket it would take? The distance between bolts is 3 9/32" and the hole diameter is 2 9/16" but I came up empty. Re: Any advice for replacing exhaust manifold gasket in a 454?Got it off today in less than an hour. Didn't bother using any fluid as it's mounted with bolts and no way to reach the threads behind the manifold. Bolts came out without any issue. Which gasket should I use? This metal GM gasket for about $20? Or these composite style aftermarket for half that for a pair? Re: How do I reach these clearance lights?Not a fear of heights just don't like that there is no railing or anything on the sides. It's only 12 feet but might as well be standing on the ledge of a skyscraper. Might ask the place that did the inspection if they can replace it.How do I reach these clearance lights? Specifically the one in the middle. I'm not getting on the roof. I have no place I can park it under to reach it from above. I got to the outer ones fine with a ladder, but it's too far a reach from the sides. Can I lay a ladder on the front over the windshield without breaking the glass?Re: Any advice for replacing exhaust manifold gasket in a 454? Brian in Michigan wrote: Are you sure its a blown gasket and not a cracked manifold? At this point does it matter? Either way it has to come off.Re: Any advice for replacing exhaust manifold gasket in a 454? Gjac wrote: They are cast iron. I've never seen cast iron formed into tubular shapes like these, especially with that accordion section in the middle like that.Re: Any advice for replacing exhaust manifold gasket in a 454?Picture of the other side. Re: Any advice for replacing exhaust manifold gasket in a 454? K Charles wrote: your selling it. Get it hot, mix up some furnace cement, or buy some pre mixed, and but it on the leak. Let it dry before starting. For a blown gasket?Re: Any advice for replacing exhaust manifold gasket in a 454? Gjac wrote: If you look very carefully the stock manifolds are probably cracked anyways. I thought they were stainless steel?Re: Any advice for replacing exhaust manifold gasket in a 454?I'm selling it so need the simplest thing that will pass inspection.