gt 40 X 303 heads?

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02-08-2006, 09:40 PM

sapp91stang

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gt 40 X 303 heads?

what is the difference between the gt 40 X 303 head and the gt 40 Y 303 head?

02-09-2006, 12:57 PM

Twister

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RE: gt 40 X 303 heads?

the X's have larger ports

02-09-2006, 06:07 PM

gspfunk

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Join Date: Nov 2004

Location: Texas

Posts: 3,834

RE: gt 40 X 303 heads?

check out Fordracingparts.com

the X is for Xtra performance.....seriously.

If your looking at those, go w/ TFS twisted wedge instead.

02-09-2006, 06:13 PM

91stang

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RE: gt 40 X 303 heads?

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

check this website out... it'll show you the best flowing intake and exhaust heads

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