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Discussion Starter · #1 ·
If I go with a 393/408 what is a good cylinder head?..I want to just be able to bolt it on and go and not have to worry about headers fitting or porting etc...I'm just looking for a strong street motor(450-500hp) that will see the occasional strip pass.
 

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The afr 225's are an awesome head. But if you are looking to make 450-500 the vic jr's will be PLENTY. I have only 10-1 compression, with a small mild hyd roller, 1 5/8 headers, dual plane intake, and mine made 519hp. Headers bolt right up and they were only like $1300. I think these are a very good bang for the buck.
 

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If you want to keep around 500 or so HP go with the 205's. I built a 414 with the 205's and a .600 lift cam, which is relativly small for those heads and made 535 at the flywheel. That's with a dual plane stealth intake and a 750 bigs carb. I could have easly pushed the 600hp mark with a bigger cam and single plane race intake.
 

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I got 185s and should be at 500+ with a 392, RPM Air Gap and 750 SD.


The 185's will get the job done. Im not say the 205's wont make more, just saying the 185's are a great head for that combo.

Heres some articles on the 185's from the AFR site.


536 HP with 185's, 392 and single plane and 750 SD
http://airflowresearch.com/articles/article024/A24-P1.htm

525 ± HP 408 with 185's
http://airflowresearch.com/articles/article061/A-P1.htm

497 HP 427 with 205's Mass Air
http://airflowresearch.com/articles/article116/A-P1.htm

522 HP 408 with 205's Single Plane
http://airflowresearch.com/articles/article112/A-P1.htm
 

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I"m saying if you want to keep that thing were it is a pleasure to drive on the street, I would go with the 205 or maybe even the 185's. My car is at its max as far as streetablity goes. I have a t5 with 389 gears. It doesn't come alive until abot 3000 rpm, and it's fun from there to 6800 rpm. But down low you can tell the car is running really inefficent. So make sure you plan well for what you going to be using the car for before you spend a bunch of money.
 

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I like the vic jr for the "mild" combo(like 500 hp is mild). Great bang for the buck out of the box and major potential.
 

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I'd go with the 205s if you're gonna street/strip it. BUT go with the 225s if it's MORE strip than street..........:&gt
 

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I've got Vic Jr's with work on them and I LOVE THEM !!!! I've got a 408 with 579hp. HOWEVER I am a open minded person (means i like to waste money on tests) and on my next 408 it will have 205's to give them a try.
 

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On 2006-11-15 18:31, RumpityRump wrote:
I've got Vic Jr's with work on them and I LOVE THEM !!!! I've got a 408 with 579hp. HOWEVER I am a open minded person (means i like to waste money on tests) and on my next 408 it will have 205's to give them a try.
Are you the same dude that did a few hot laps around a parking lot in a mustang, then hit yourself in the head with a shovel? I've been trying to scour the archives for that video, but I haven't been able to come up with it. It's a must see.
 

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On 2006-11-15 18:38, Cain wrote:
On 2006-11-15 18:31, RumpityRump wrote:
I've got Vic Jr's with work on them and I LOVE THEM !!!! I've got a 408 with 579hp. HOWEVER I am a open minded person (means i like to waste money on tests) and on my next 408 it will have 205's to give them a try.
Are you the same dude that did a few hot laps around a parking lot in a mustang, then hit yourself in the head with a shovel? I've been trying to scour the archives for that video, but I haven't been able to come up with it. It's a must see.
ive seen that one.
 

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some canfields would work very well. Price is going up, get em quick
 

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I'm doing a 408 and since I already have T/W heads I am having them ported to 205 by TEA a slight bump over afr,s and better low end.
 

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On 2006-11-15 18:38, Cain wrote:
On 2006-11-15 18:31, RumpityRump wrote:
I've got Vic Jr's with work on them and I LOVE THEM !!!! I've got a 408 with 579hp. HOWEVER I am a open minded person (means i like to waste money on tests) and on my next 408 it will have 205's to give them a try.
Are you the same dude that did a few hot laps around a parking lot in a mustang, then hit yourself in the head with a shovel? I've been trying to scour the archives for that video, but I haven't been able to come up with it. It's a must see.
If you guys find it, let me know, I'd love to see that lol.

Cris
 

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Discussion Starter · #19 ·
The vic jrs appear to be the better deal for what I need being roughly $500 bucks cheaper than the AFR 205s..However I noticed most guys saying they have done additional work to the jrs..How much additional work?...Porting is very expensive so this could offset the lower price of the jrs.
 
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