Fox T-Bird/Cougar Forums

Technical => Engine Tech => Topic started by: 289Cougar on July 18, 2005, 09:32:32 PM

Title: Should be slightly faster...
Post by: 289Cougar on July 18, 2005, 09:32:32 PM
Just picked these babies up, 255 shipped.

(http://i12.ebayimg.com/02/i/01/c5/a0/d8_1_b.JPG) 

GT40P heads.

That with a 268XE cam from comp cams (next paycheck) should put me around 325 HP and 337 TQ at the flywheel according to desktop dyno.

I'll let you guys know how these heads work out.
Title: Re: Should be slightly faster...
Post by: Tbird232ci on July 18, 2005, 09:34:18 PM
need a special set of headers
Title: Re: Should be slightly faster...
Post by: 289Cougar on July 18, 2005, 09:36:01 PM
Nahh, I can slightly modify the 3/4 tubes, I found this awesome site...

GT40p (http://www.stangpro.com/html/articles/gt40p_files/gt40p1.htm)

I guess the heddmans work nicely and I already have 90 degree boots
Title: Re: Should be slightly faster...
Post by: 30thtbird on July 18, 2005, 10:04:30 PM
i used the trickflow valve spring upgrade on mine.lapped the valves back in .a o k.
Title: Re: Should be slightly faster...
Post by: cougarman on July 19, 2005, 12:17:50 PM
Quote from: Tbird232ci
need a special set of headers


That's another "urban myth". we have a few cars here running BBK shorties, plenty of room. All plugs are accessible, no problems. :D
Title: Re: Should be slightly faster...
Post by: Haystack on July 19, 2005, 12:43:39 PM
looks like ti will be fun to get them out, But it shouldnt be as bad as a newer car.
Title: Re: Should be slightly faster...
Post by: 289Cougar on July 19, 2005, 12:55:05 PM
Hey Cougarman and 30thtbird, how did these heasds work out for you? Performance/HP gains and what not...
Title: Re: Should be slightly faster...
Post by: cougarman on July 19, 2005, 01:03:25 PM
Quote from: 289Cougar
Hey Cougarman and 30thtbird, how did these heasds work out for you? Performance/HP gains and what not...

welllll.... :banana:  :banana:  :banana:  :banana:  :banana:  :banana:    I like 'em.
Title: Re: Should be slightly faster...
Post by: cougarman on July 19, 2005, 01:11:14 PM
Quote from: Haystack
looks like ti will be fun to get them out, But it shouldnt be as bad as a newer car.

actually not much different than stock plugs.  :tg:
Title: Re: Should be slightly faster...
Post by: 289Cougar on July 20, 2005, 06:19:38 PM
oh man, got the headers in, took one day to ship!
Look like they are in pretty good condition, im going to take a dremel to the chambers to clean them up a little and repaint it, should add some decent power over my low compression heads. Goodbye regular unleaded gas :(
Title: Re: Should be slightly faster...
Post by: Tbird232ci on July 20, 2005, 06:38:27 PM
looks like i might be looking for some P heads then, if thats just myth
Title: Re: Should be slightly faster...
Post by: Funky Cricket on July 21, 2005, 12:35:19 PM
you'll have to let us know how they are when you get them in!