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-=Jeff=- · 03-18-2011

Well I finally pulled my IH off tonight for add the baffles, guess what the 550-013 ( 1-1/32") are too big

I measure the holes and they are close to .953" which is 61/64"

31/32 will be too big and 15/16 is too small, but dorman 550-011 will work like the ones you used Tom. guess I need to go find them tomorrow or something close..

I also had an email conversation with Greg Van Deventer, he said, duplicate the 90 exactly, 2 holes per side, both should be 6.6mm DIA ( just over 1/4")

so that is what I will do as soon as I find plugs

03-18-2011	#57
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,168	Re: Oil in injector housing? Well I finally pulled my IH off tonight for add the baffles, guess what the 550-013 ( 1-1/32") are too big I measure the holes and they are close to .953" which is 61/64" 31/32 will be too big and 15/16 is too small, but dorman 550-011 will work like the ones you used Tom. guess I need to go find them tomorrow or something close.. I also had an email conversation with Greg Van Deventer, he said, duplicate the 90 exactly, 2 holes per side, both should be 6.6mm DIA ( just over 1/4") so that is what I will do as soon as I find plugs __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978