EGR Port in the head

Lonnie Cox · 12-07-2013, 10:13 PM

Can you block it and will it help performance?

Mark Yacavone · 12-07-2013, 10:25 PM

If you're talking about the exhaust crossover , then go here:

http://classracer.com/classforum/sho...aust+crossover

goinbroke2 · 12-14-2013, 02:42 PM

Lonnie, do you mean exh crossover like Mark said or EGR ports?
I take it you are talking the cast-in air injection nozzles in ford exh ports? Since you can't grind them or anything I wouldn't think blocking them would help but I could be wrong. Normally I just put a plug in the back of the head where the transfer tube connects, leaving the internal cast-in passages alone. Here's a picture of a chrome tube still connected;
http://www.supermotors.net/getfile/3...e/xtubenew.jpg

Are you thinking of putting eight tiny plugs in the "nozzles" that protrude into the exh port?

12-07-2013, 10:13 PM	#1
Lonnie Cox Junior Member Join Date: May 2010 Posts: 88 Likes: 0 Liked 0 Times in 0 Posts	EGR Port in the head Can you block it and will it help performance?

12-07-2013, 10:25 PM	#2
Mark Yacavone Veteran Member Join Date: Mar 2002 Location: Miles From Nowhere Posts: 7,789 Likes: 2,881 Liked 5,077 Times in 1,935 Posts	Re: EGR Port in the head If you're talking about the exhaust crossover , then go here: http://classracer.com/classforum/sho...aust+crossover __________________ "We are lucky we don't get as much Government as we pay for." Will Rogers

12-14-2013, 02:42 PM	#3
goinbroke2 Senior Member Join Date: Mar 2002 Location: NS CANADA Posts: 869 Likes: 1,462 Liked 355 Times in 140 Posts	Re: EGR Port in the head Lonnie, do you mean exh crossover like Mark said or EGR ports? I take it you are talking the cast-in air injection nozzles in ford exh ports? Since you can't grind them or anything I wouldn't think blocking them would help but I could be wrong. Normally I just put a plug in the back of the head where the transfer tube connects, leaving the internal cast-in passages alone. Here's a picture of a chrome tube still connected; http://www.supermotors.net/getfile/3...e/xtubenew.jpg Are you thinking of putting eight tiny plugs in the "nozzles" that protrude into the exh port?