Lincoln Navigator Heads

03Mach1NNVA · December 19th, 2011, 08:07 PM

Wanting to get some information on some Navi Heads I've seen for sale. I have a 03 Mach which I plan building up within the next few months, and was wondering are their any differences between the 2?

DickH · December 20th, 2011, 01:06 AM

There is a difference, and you are better off with your heads. Your heads have better exhaust flow, the intake ports from the top to the valve are shaped better, and there is not one intake you can throw on navi heads (on a 4.6) that have the ports match without a bit of work.

03Mach1NNVA · December 20th, 2011, 09:39 AM

ok, thanks man I appreciate the advice. I was doing a little research and found that the lower intake would have to be modified. THink I will keep what I got! Thanks again!

December 19th, 2011, 08:07 PM	#1
03Mach1NNVA Newbie 2003 Mach 1 Join Date: Sep 2011 Location: Hampton Roads Posts: 19 iTrader: 0 reviews	Lincoln Navigator Heads Wanting to get some information on some Navi Heads I've seen for sale. I have a 03 Mach which I plan building up within the next few months, and was wondering are their any differences between the 2?

December 20th, 2011, 01:06 AM	#2
DickH MM Fanatic 2003 gt 5.4 32v on the way Join Date: May 2007 Location: Omaha Posts: 4,189 iTrader: 2 reviews	There is a difference, and you are better off with your heads. Your heads have better exhaust flow, the intake ports from the top to the valve are shaped better, and there is not one intake you can throw on navi heads (on a 4.6) that have the ports match without a bit of work. __________________ 2003 Mustang gt - usual mods - slowly working on 5.4 swap 2004 srt4 - Stock DD/winter beater Click here for your tuning needs Before asking a gearing related question click THIS link and enjoy all your saved time.

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December 20th, 2011, 09:39 AM	#3
03Mach1NNVA Newbie 2003 Mach 1 Join Date: Sep 2011 Location: Hampton Roads Posts: 19 iTrader: 0 reviews	ok, thanks man I appreciate the advice. I was doing a little research and found that the lower intake would have to be modified. THink I will keep what I got! Thanks again!

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