This is topic whats better or what the difference between afr & tfs heads? in forum Tech Talk at Northern California Ford Owners  .


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Posted by F8LSN8K (Member # 7080) on :
 
like the title says
 

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Posted by SmokinLX (Member # 1684) on :
 
Probably alot. What I know is tfs's big selling point on there sbf head's are the valve position allow's them to be used with stock piston's "depending on cam". If You are considering the AFR's head's I would recommend the valve spring upgrade.
 

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Posted by kingmoochr (Member # 5834) on :
 
what are you building and whats it for
 

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Posted by Fox Lightning (Member # 7658) on :
 
what are u building and what size head afr 165,185,205,225 or what size tf head
 

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Posted by F8LSN8K (Member # 7080) on :
 
i have an e cam, dont plan to swap it out, and i want to get the afr 165's.....which should polt right on right?
 

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Posted by F8LSN8K (Member # 7080) on :
 

quote:

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Originally posted by SmokinLX:
Probably alot. What I know is tfs's big selling point on there sbf head's are the valve position allow's them to be used with stock piston's "depending on cam". If You are considering the AFR's head's I would recommend the valve spring upgrade.

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quote:

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Originally posted by BCINGUU:
I have 2 stangs with the same short block, one with TFS heads and the other with AFR185s. They are not ported or otherwise modified. I can tell you that the AFRs are faster on my cars. I found that to be true even when I swapped longblocks between the two cars. The AFR heads performed better in each car they were in.

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afr it is then
thats what i was leaning towards anyway
 

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Posted by 92stangLX (Member # 3252) on :
 

quote:

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Originally posted by F8LSN8K:

quote:

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Originally posted by BCINGUU:
I have 2 stangs with the same short block, one with TFS heads and the other with AFR185s. They are not ported or otherwise modified. I can tell you that the AFRs are faster on my cars. I found that to be true even when I swapped longblocks between the two cars. The AFR heads performed better in each car they were in.

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afr it is then
thats what i was leaning towards anyway

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quote:

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Originally posted by 92stangLX:

quote:

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Originally posted by F8LSN8K:

quote:

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Originally posted by BCINGUU:
I have 2 stangs with the same short block, one with TFS heads and the other with AFR185s. They are not ported or otherwise modified. I can tell you that the AFRs are faster on my cars. I found that to be true even when I swapped longblocks between the two cars. The AFR heads performed better in each car they were in.

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afr it is then
thats what i was leaning towards anyway

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Trick flow now has a set of CNC'd Twisted Wedge heads

http://www.trickflow.com/product/fordcylinderheads/cnctwistedtrack/pr_cnctwisted.asp

I have heard some good things about them. Dunno how they size up to the AFR's. However, if you go with a "185" head you will most likely want to change that E-cam

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im goin with the 165's

dont wanna change valves and shit and i wanna stay smog legal too so thats why im leavin in the E cam
 

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Posted by SmokinLX (Member # 1684) on :
 

quote:

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Originally posted by SmokinLX:
Probably alot. What I know is tfs's big selling point on there sbf head's are the valve position allow's them to be used with stock piston's "depending on cam". If You are considering the AFR's head's I would recommend the valve spring upgrade.

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The base spring's wer'nt enough for Me with an F cam & charger. You might be able to get by with the base they offer "with the E " but it cant be much to upgrade them and it is a bitch to do them later unless the head's are already off the car. They might be ok NA but if You throw some boost on there I bet they will float like Mine did at 5300 RPM. Do a search on here and www.corral.net before You order Em or at least I would if it were My money!
 

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Posted by F8LSN8K (Member # 7080) on :
 

quote:

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Originally posted by SmokinLX:

quote:

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Originally posted by SmokinLX:
Probably alot. What I know is tfs's big selling point on there sbf head's are the valve position allow's them to be used with stock piston's "depending on cam". If You are considering the AFR's head's I would recommend the valve spring upgrade.

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The base spring's wer'nt enough for Me with an F cam & charger. You might be able to get by with the base they offer "with the E " but it cant be much to upgrade them and it is a bitch to do them later unless the head's are already off the car. They might be ok NA but if You throw some boost on there I bet they will float like Mine did at 5300 RPM. Do a search on here and www.corral.net before You order Em or at least I would if it were My money!

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johnB will be doin the work for me, so when the time is near, i will look into that more with him see what he thinks. my stock gt40 heads, i upgraded them with the tfs valve spring upgrade kit. maybe he can switch em over or somethin, but thanks for ur .02

[ May 25, 2007, 09:44 PM: Message edited by: F8LSN8K ]
 

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Posted by Luke87GT (Member # 21) on :
 

quote:

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Originally posted by BCINGUU:
I have 2 stangs with the same short block, one with TFS heads and the other with AFR185s. They are not ported or otherwise modified. I can tell you that the AFRs are faster on my cars. I found that to be true even when I swapped longblocks between the two cars. The AFR heads performed better in each car they were in.

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quote:

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Originally posted by F8LSN8K:

quote:

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Originally posted by SmokinLX:

quote:

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Originally posted by SmokinLX:
Probably alot. What I know is tfs's big selling point on there sbf head's are the valve position allow's them to be used with stock piston's "depending on cam". If You are considering the AFR's head's I would recommend the valve spring upgrade.

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The base spring's wer'nt enough for Me with an F cam & charger. You might be able to get by with the base they offer "with the E " but it cant be much to upgrade them and it is a bitch to do them later unless the head's are already off the car. They might be ok NA but if You throw some boost on there I bet they will float like Mine did at 5300 RPM. Do a search on here and www.corral.net before You order Em or at least I would if it were My money!

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johnB will be doin the work for me, so when the time is near, i will look into that more with him see what he thinks. my stock gt40 heads, i upgraded them with the tfs valve spring upgrade kit. maybe he can switch em over or somethin, but thanks for ur .02

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John will steer You the rite way.
 

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Posted by jmcclesk (Member # 1355) on :
 
The trickflows 185's worked good for me. I went 11.92@115 with 185's. Trickflow stage 1 cam and a track heat intake on a 93 coupe.

[ May 26, 2007, 10:15 AM: Message edited by: jmcclesk ]
 

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Posted by F8LSN8K (Member # 7080) on :
 
i'll probably be in the mid, MAYBE low, 12's

165 afr heads, headers, E cam, cobra intake port matched and all, oh and i have gears and i'll be gettin nittos
 

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Posted by Luke87GT (Member # 21) on :
 
It will take a very good driver and major hook for you to see low 12s with those parts. I don't think you will do it with Nittos, e303, and a cobra intake

I am predicting 107-109 mph traps assuming you have a full weight 5 liter Mustang

Prove me wrong



[ May 26, 2007, 10:34 AM: Message edited by: Luke87GT ]
 

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Posted by F8LSN8K (Member # 7080) on :
 

quote:

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Originally posted by Luke87GT:
It will take a very good driver and major hook for you to see low 12s with those parts. I don't think you will do it with Nittos, e303, and a cobra intake

I am predicting 107-109 mph traps assuming you have a full weight 5 liter Mustang

Prove me wrong

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quote:

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Originally posted by Pure Stang:
do some suspencion work as well! yea +1 on the afr's but why dont you get the 185's? they have those street legal as well

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for the 185's u have to change the valves and shit like that

aint tryin to do hella shit ya know
 

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Posted by Pure Stang (Member # 7251) on :
 

quote:

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Originally posted by F8LSN8K:

quote:

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Originally posted by Pure Stang:
do some suspencion work as well! yea +1 on the afr's but why dont you get the 185's? they have those street legal as well

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for the 185's u have to change the valves and shit like that

aint tryin to do hella shit ya know

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quote:

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Originally posted by Pure Stang:

quote:

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Originally posted by F8LSN8K:

quote:

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Originally posted by Pure Stang:
do some suspencion work as well! yea +1 on the afr's but why dont you get the 185's? they have those street legal as well

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for the 185's u have to change the valves and shit like that

aint tryin to do hella shit ya know

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you do? either way the heads will wake up your car....

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yup.....they wont fit. 165's will bolt right on
 

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Posted by baggins (Member # 3957) on :
 
i know that there not afr or trick flow but my car ran a best of 13.01 with a 1.92 60 ft AT 109.8 with edelbrock 1.90 performers and a track heat with all the supporting mods on street tires
 

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Posted by phil a (Member # 6951) on :
 

quote:

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Originally posted by F8LSN8K:

quote:

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Originally posted by Pure Stang:

quote:

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Originally posted by F8LSN8K:

quote:

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Originally posted by Pure Stang:
do some suspencion work as well! yea +1 on the afr's but why dont you get the 185's? they have those street legal as well

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for the 185's u have to change the valves and shit like that

aint tryin to do hella shit ya know

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you do? either way the heads will wake up your car....

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yup.....they wont fit. 165's will bolt right on

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you can't believe everything you read in magazines
 

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Posted by opie (Member # 7693) on :
 
You could always put $800 in your heads pay for a custom cam be faster and still be stock
 

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Posted by F8LSN8K (Member # 7080) on :
 

quote:

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Originally posted by phil a:

quote:

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Originally posted by F8LSN8K:

quote:

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Originally posted by Pure Stang:

quote:

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Originally posted by F8LSN8K:

quote:

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Originally posted by Pure Stang:
do some suspencion work as well! yea +1 on the afr's but why dont you get the 185's? they have those street legal as well

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for the 185's u have to change the valves and shit like that

aint tryin to do hella shit ya know

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you do? either way the heads will wake up your car....

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yup.....they wont fit. 165's will bolt right on

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you can't believe everything you read in magazines

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as in?????
 

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Posted by Lemonade (Member # 3692) on :
 

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you can't believe everything you read in magazines

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How about on the internet?

Lems

[ June 01, 2007, 03:09 PM: Message edited by: Lemonade ]
 

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Posted by slowback67 (Member # 6348) on :
 
have you seen the 165 afr's comp port package
FLOW #
165CP 165
int/ex
200 129/121 122/118
300 188/155 185/152
400 230/192 223/178
500 245/207 240/185
600 254/215 244/191

I'm all over a set when i have the money
they say they are great for the guy who can't run 185's because of stock pistons.
I hear tfs are good too!
 

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Posted by cdog301 (Member # 5136) on :
 
They are right I have the 165's with a Ecam and I broke valee train stuff up grade the springs PLEASE!
 

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Posted by FOXWTIT (Member # 7634) on :
 

quote:

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Originally posted by F8LSN8K:

quote:

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Originally posted by SmokinLX:
Probably alot. What I know is tfs's big selling point on there sbf head's are the valve position allow's them to be used with stock piston's "depending on cam". If You are considering the AFR's head's I would recommend the valve spring upgrade.

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dont they come with good valve springs already?

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quote:

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Originally posted by FOXWTIT:

quote:

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Originally posted by F8LSN8K:

quote:

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Originally posted by SmokinLX:
Probably alot. What I know is tfs's big selling point on there sbf head's are the valve position allow's them to be used with stock piston's "depending on cam". If You are considering the AFR's head's I would recommend the valve spring upgrade.

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dont they come with good valve springs already?

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Depends on what rocker arm ratio too.... i got the e-cam and the afr 165's with a 1.7 rocker and i think im cuttin it real close... i believe the the springs are good for .530 lift and i got like .528 or somethin real close like that..

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