External Grinding Exhaust Manifold?

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External Grinding Exhaust Manifold?

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Rug_Trucker

Post subject: External Grinding Exhaust Manifold?

PostPosted: Mon Apr 13, 2009 8:46 am

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Turbo EFI

Joined: Wed Feb 23, 2005 1:50 pm
Posts: 2354
Location: Pertneer Nashville TN
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Was heating some bolts to free them up on a '83 truck manifold. Of course I am going to open up the ports and the exit!

The seams or casting ridges on the outside? Think they should be ground down? Would this help it survuve without cracking?

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93 D350 Cummins THD Maxfuel 35mpg parts to hit 400hp+ Suncoast Cat2 A518, converter DDP Stage III injectors 62/64 HX35, 3 piece manifold, 4" Diamond Eye, Gear Venders OD. Stage I street/tow PDD head on order.

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65Dodge100

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PostPosted: Mon Apr 13, 2009 11:10 am

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Turbo Slant 6

Joined: Sat Dec 08, 2007 9:48 pm
Posts: 570
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I smoothed mine down pretty well but I wouldnâ€™t grind anything I didnâ€™t have to. I just ground the sharp edges and casting boogers so it looks a little better and I donâ€™t bleed as much installing it. I donâ€™t think it will help cracking. Installing it with no stress on it, and so it can move freely when it expands/contracts will help more than anything.

Danny