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89 P30 454 exhaust manifolds leak

Home > Discussion Forum > Mechanic's Corner - Engines

Email Author email Greg Butterbaugh  Reply to Message reply to message  Post New Message post new message      search forums
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89 P30 454 exhaust manifolds leak Greg Butterbaugh 6-10-08  
I am have the hardest time locating the exhaust manifolds for my motor home. I am told that it is S/S and has emissions control tubes coming from the intake into the exhaust manifold. I have been working on the internet for two days. When these things warp and go bad. What do you do? Can anyone tell me where to find a right and left manifold.
Re: 89 P30 454 exhaust manifolds leak BUBBA THE BUS TECH 6-10-08  
It is a pain to get these off the side of the engine but when I do I usually just fire up my pedistal belt sander and make them flat-ish again. They can go to a machine shop and be planed if you are willing to pay. Most big block manifolds only warp if the fasteners break or are loose. Good Luck
Re: 86 P30 454 exhaust manifolds leak Bill Martinez 9-4-08  
Hi What kind of gastkets do you use on the exhaust manifold ?it seams like they dont last very long with heat and hi compresstion
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