LT1-LT4 Modifications 1993-97 Gen II Small Block V8

EGR caps

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Old Feb 18, 2010 | 07:12 PM
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Default EGR caps

Ok, in continuing with the repairs to bring the 93 up to factory condition, I had a block off bolt somehow pop out of the passenger stock manifold where the EGR system used to be while going down the interstate, so it's MIA.
If I had a caliper to measure the bolt size I'd have this solved already.
Anyone know the bolt size or if a company manufactures kits to cap the EGR holes?
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Old Feb 18, 2010 | 07:26 PM
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I'm not sure myself, I blocked mine off differently, but you'll have an easier time finding what you need by searching for AIR block offs the EGR comes out of the back of the intake
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Old Feb 18, 2010 | 09:11 PM
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Excuse my ignorance. Anyone else want to chime in?
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Old Feb 18, 2010 | 09:14 PM
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Are you talking about a bolt that fell off on the back of the intake?
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Old Feb 18, 2010 | 09:30 PM
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Originally Posted by bigj2717
Are you talking about a bolt that fell off on the back of the intake?
No, where the AIR attaches to the stock exhaust manifolds, the bolt cap that was blocking the hole up came out on the road.
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Old Feb 18, 2010 | 09:32 PM
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So it was the AIR port and not the ERG? If its the AIR on the manifold its 1/2" pipe thread and you can go to any hardware store and get a 1/2" pipe plug
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Old Feb 19, 2010 | 08:37 AM
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The tubes on the headers for the air injection are M22 threads and can be plugged using the oil drain plug from a Dodge Ram equiped with a Cummins diesel engine. You can usually get the drain plugs at any auto parts store.
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Old Feb 19, 2010 | 06:58 PM
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Thanks for the info, I'll try yall's solutions out.
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I just welded in a bolt into the top of my headers where it connected...that won't fall out
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