GT40X Heads (good price or not)

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08-02-2007, 12:20 PM

#31

Dath

2nd Gear Member

Join Date: May 2006

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Posts: 394

RE: GT40X Heads (good price or not)

Quote:

ORIGINAL: my77stang
the flow would be the same in iron or aluminum, its only the weight difference and heat transfer that makes a difference (and they look cooler

)

The aluminum have better flow. The intake of the iron cobra is 1.84. The GT-40X has a 1.94 intake. Used to be a chart floating around here that broke this down better.

08-02-2007, 12:20 PM

#32

Dath

2nd Gear Member

Join Date: May 2006

Location:

Posts: 394

RE: GT40X Heads (good price or not)

Found it.

http://www.allfordmustangs.com/Detailed/630.shtml

08-02-2007, 08:50 PM

#33

Mustangkiler

5th Gear Member

Join Date: Dec 2005

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Posts: 2,005

RE: GT40X Heads (good price or not)

just weld up the head if you have problems with nitrous blowin em apart.

08-02-2007, 09:04 PM

#34

my77stang

6th Gear Member

Join Date: Dec 2006

Location: Citrus County, FL

Posts: 8,007

RE: GT40X Heads (good price or not)

Quote:

The aluminum have better flow. The intake of the iron cobra is 1.84. The GT-40X has a 1.94 intake. Used to be a chart floating around here that broke this down better.

but they dont flow better because they are aluminum, they flow better because they have larger valves and probably an improved runner design.

i was just pointing out that being made of aluminum didnt make them flow better, cause thats how the post kinda sounded [8D]