This is topic Which heads are better in forum Tech Talk at Northern California Ford Owners  .


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Posted by Billy Bob (Member # 9412) on :
 
Some people are telling me to go with GT40 heads and others are saying aluminum. I have a typhoon intake with 75mm throttle body. Going to get an E or F cam. So was wondering what will go best?
 
Posted by Saleen 00-0768 (Member # 9379) on :
 
trickflow 170 or afr 165. both are far better than gt40 heads. both are also smog legal. also benefit from removing weight off the front of the car.
 
Posted by Billy Bob (Member # 9412) on :
 
quote:
Originally posted by Saleen 00-0768:
trickflow 170 or afr 165. both are far better than gt40 heads. both are also smog legal. also benefit from removing weight off the front of the car.
Are they just better because of it being lighter or performance wise?
 
Posted by Saleen 00-0768 (Member # 9379) on :
 
quote:
Originally posted by Billy Bob:
quote:
Originally posted by Saleen 00-0768:
trickflow 170 or afr 165. both are far better than gt40 heads. both are also smog legal. also benefit from removing weight off the front of the car.
Are they just better because of it being lighter or performance wise?
they flow much better than gt40 heads, even if you had the gt40s ported.
 
Posted by NEIGHT (Member # 8741) on :
 
If you're going alphabet cams I personally prefer B cam, the E cam has low vacuum and I never seen a car with a F cam so I don't know how good those are. And I also like AFR over trickflow but they're both good set of heads, the amount of money it'll take to make the GT40's flow as good as untouched aluminum heads you'd be able to pay for the aluminum heads.

[ 2014-02-21, 01:46 PM: Message edited by: NEIGHT ]
 
Posted by 5.0 LsX (Member # 10017) on :
 
aluminum head hands down, not even a comparison to gt40's. ive always like trickflow myself, but cant go wrong with afr, probably wont notice a diff. ive run the f cam and had great results, but it seems people like the trickflow stage 1, if not custom grind cam
 
Posted by Billy Bob (Member # 9412) on :
 
quote:
Originally posted by NEIGHT:
If you're going alphabet cams I personally prefer B cam, the E cam has low vacuum and I never seen a car with a F cam so I don't know how good those are. And I also like AFR over trickflow but they're both good set of heads, the amount of money it'll take to make the GT40's flow as good as untouched aluminum heads you'd be able to pay for the aluminum heads.
What do I do to prevent over heating. So the heads don't mess up that was the only thing I was worried about with aluminum heads
 
Posted by 5.0 LsX (Member # 10017) on :
 
quote:
Originally posted by Billy Bob:
quote:
Originally posted by NEIGHT:
If you're going alphabet cams I personally prefer B cam, the E cam has low vacuum and I never seen a car with a F cam so I don't know how good those are. And I also like AFR over trickflow but they're both good set of heads, the amount of money it'll take to make the GT40's flow as good as untouched aluminum heads you'd be able to pay for the aluminum heads.
What do I do to prevent over heating. So the heads don't mess up that was the only thing I was worried about with aluminum heads
nothing special, cooling system and fan just have to be working properly
 
Posted by SIC9250 (Member # 8216) on :
 
Who says a gt40 head is better than an aluminum head [Confused] [BS flag]
 
Posted by REDLIGHTING (Member # 11296) on :
 
I had TFS aluminum twisted wedge, e303 cobra intake
gears ect. Street radials and went 12.67 cconsistent.
Also daily driver and passed smog every two years at test only center. FYI
 
Posted by red5o (Member # 12651) on :
 
Don't forget the 1.6 rockers or 1.7
 
Posted by Billy Bob (Member # 9412) on :
 
Ok thanks I apperitcate it
 
Posted by JZTRK (Member # 7641) on :
 
afr 165 on a 302 also look at othe cams dont limit your self to an alphabet cam thay are old technology

here is my build that has no problem passing test only smog
http://www.youtube.com/watch?v=wAcrAfQHwug
 
Posted by Billy Bob (Member # 9412) on :
 
quote:
Originally posted by JZTRK:
afr 165 on a 302 also look at othe cams dont limit your self to an alphabet cam thay are old technology

here is my build that has no problem passing test only smog
http://www.youtube.com/watch?v=wAcrAfQHwug
That's nice
 
Posted by 50Reasons (Member # 6452) on :
 
And why are you going 75 mm tb? I see this a lot on people's cars on motors that are mild hci set ups, when there are no need for this big of a tb . So You have no need for this big of a tb,this could slow you down unless your slapping a power added .fyi gt40 heAds suck IMHO don't believe the street swanger hype who think these heads are worth your time and money, just pony up and buy some real heads.. PS cast iron heads can be good to like roush 200 or Windsor heads but stay away from garbage gt40 heads even ported ones
 
Posted by Billy Bob (Member # 9412) on :
 
quote:
Originally posted by 50Reasons:
And why are you going 75 mm tb? I see this a lot on people's cars on motors that are mild hci set ups, when there are no need for this big of a tb . So You have no need for this big of a tb,this could slow you down unless your slapping a power added .fyi gt40 heAds suck IMHO don't believe the street swanger hype who think these heads are worth your time and money, just pony up and buy some real heads.. PS cast iron heads can be good to like roush 200 or Windsor heads but stay away from garbage gt40 heads even ported ones
I got the 75mm in a package deal so that's why I'm using that
 
Posted by 50Reasons (Member # 6452) on :
 
Trade for a 65mm or 70 no need for 75 it's over kill
 
Posted by Camara90 (Member # 134) on :
 
You will be fine with a 75mm. This is not a carb setup and to big will not be an issue. 75mm is just shy of 3 inches, most cold air setups are 3 or bigger. Try to get a Mass air that will not bottle neck down your cold air as well.
 
Posted by Billy Bob (Member # 9412) on :
 
quote:
Originally posted by Camara90:
You will be fine with a 75mm. This is not a carb setup and to big will not be an issue. 75mm is just shy of 3 inches, most cold air setups are 3 or bigger. Try to get a Mass air that will not bottle neck down your cold air as well.
What do u mean by bottle neck down my cold air?
 
Posted by 50Reasons (Member # 6452) on :
 
quote:
Originally posted by Billy Bob:
quote:
Originally posted by Camara90:
You will be fine with a 75mm. This is not a carb setup and to big will not be an issue. 75mm is just shy of 3 inches, most cold air setups are 3 or bigger. Try to get a Mass air that will not bottle neck down your cold air as well.
What do u mean by bottle neck down my cold air?
Meaning better have bigger then 75 mm maf
 
Posted by NEIGHT (Member # 8741) on :
 
quote:
Originally posted by Billy Bob:
quote:
Originally posted by Camara90:
You will be fine with a 75mm. This is not a carb setup and to big will not be an issue. 75mm is just shy of 3 inches, most cold air setups are 3 or bigger. Try to get a Mass air that will not bottle neck down your cold air as well.
What do u mean by bottle neck down my cold air?
Picture the top part of a 2 liter soda how it goes from being big to the small cap, that's his reference, nothing special. [patriot]
 




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