Sounds like you have an Explorer lower because if you got a GT40 from Ford Racing it would have those holes tapped. I'm thinking the holes are around 1/2 or 5/8" NPT, but you can tap it for any thread as long as the coolant line will still fit on the barb and you have enough metal around the hole.
You can fabricate this to make it work though. See what size coolant hose you need to fit the fittings on the egr spacer. Then go to Home Depot and find a brass fitting that is barbed on one end (the barb size has to be one that will take the same size coolant hose) and threaded on the other end. Get the one with the smallest threaded male end on it. That's the size tap you will need (to match the threaded end of the barbed fitting). The tap package will tell you what size hole you need to drill. Alternatively, the Cobras didn't come with any coolant lines to the egr spacer. You could simply block off the nipple from the metal tube, and cap off the nipples on the spacer and do without it completely.
Thursday, July 1st, 2010 AT 1:04 PM