I just removed the EGR tube from the back of the heads. What size bolts go into the heads to block the holes.. Or should I just cut the tubes flush and welding them over..
Don't cut the tube, you might for some reason need it later on. Get some pipe plugs from Lowe's and make sure they're stainless or brass. Put a little silicone on them and you won't have any leaks but damn if I can remember what size they are.
Think eagle think!!! I have so many brass fittings from HomeDepot the People know me on a first name basis..
trying not to go there and buy 2 of every plug on the rack.
Kinda looks like a 1/2 coarse thread to me.. Does that ring a bell?
Dont me too much but I think it is. I've taken that thing on and off so many times I almost remember what size it is so check it. If it isn't, I'd think it'd be 7/16.