Head porting:should I grind down exhaust valve guide boss?

LOCASH

Founding Member

Jan 2, 2001

508

0

17

Italy

Dec 26, 2003

#1

• Dec 26, 2003

• #1

Hey, I am getting ready to start porting these heads on Sat. I noticed that the Exhaust valve guide boss is really big. Should I grind this down into the wall? Has anyone ever removed it completely? I have read a couple of articles but I can't really see if they have ground it down all the way or not. Thanks

 

Xtreme Limits

Founding Member

Nov 30, 2001

375

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Hudson, Florida

Dec 26, 2003

#2

• Dec 26, 2003

• #2

big, no no, check out mouses web site thats what me and my dad followed, http://www.cmc.net/~xero/Mousesporting.html , or ask thumper460, he knows his stock porting head skills

 

BlackFox5.0

Founding Member

Aug 7, 2000

3,514

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0

Massachusetts

Dec 26, 2003

#3

• Dec 26, 2003

• #3

I've seen someone do this before, I think it was done by Powerheads, but don't qoute me, I don't think he has any problems, but I highly suggest you don't do it, you might end up with scratched valves later on, which is bad....

 

thumper460

Founding Member

Jul 24, 2000

3,022

2

56

Orange Park , Fl

Dec 26, 2003

#4

• Dec 26, 2003

• #4

You can safely remove the exhaust boss and angle the roof of the port/bowl, so the angle is flat and to the back of the bowl. Or as the roof of the port starts out from the outside ( Header mount) it will now be flat all the way to the back of the bowl!! ( Egr bump removed and the lower exhaust bowl) a good straight shot !! Cool?? Fun huh??

Just me.........................

Thumper

 

5.0Droptop

...all those nights we shared, and you're a dude??

Special Agent Mukity-Muck Whats in Charge Round Here

May 15, 2002

1,785

1,130

233

Indiana

Dec 26, 2003

#5

• Dec 26, 2003

• #5

Thumper rules!! Hi Mike!