This is topic Head swap question is it worth it to... in forum Tech Talk at Northern California Ford Owners .
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Posted by TwoTone91GT (Member # 7254) on
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I have the current set up
B 303 cam, gt40x heads, cobra intake manifold 1.6 rockers
Would it be worth it to swap just AFR 165 or should I get a new cam also and 1.7 rr and if so what additional parts would I need for the swap
[ February 13, 2009, 01:58 AM: Message edited by: TwoTone91GT ]
Posted by Bigjerry916 (Member # 8787) on
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put a s trim on it
Posted by TwoTone91GT (Member # 7254) on
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way to rub it in it face jerry Hhahahaha I want it back I just realized. Sold it for stupid cheap
Posted by jp (Member # 8045) on
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A set of afr 165 would really wake your combo up alot, they flow really great right out the box. But you should have your intake ported so it will flow the same amount. If you go to www.corral.net and look for a member named tmoss and check out his post's and his website you will see he can port a stock cobra intake to flow just like all the other big name intakes and still keep alot of your low end torq. He did my explorer gt40 intake huge improvement. A custom cam to match all your componets is were all the power really is-all thought I do like the letter cams unlike most people.
I would keep your 1.6rr and get the 165 afr and a custom cam and your intake ported by tmoss and you could make atleast 350 rwhp I did. my combo is a sony brown custom cam afr 165 1.6rr explorer intake same as your cobra ported by tmoss long tubes but if you go cusyom cam route you should now how to degree a cam cause they will send you the correct degree for cam to make good power. Good luck
Posted by svfreerider87 (Member # 5748) on
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get an s-trim with a water methanol kit and get it tuned. you won't regret.
Posted by 92stangLX (Member # 3252) on
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yes, it would be worth it. You should see a noticable gain. While you are at it I would port your cobra intake (at least the lower).
I'm sure your current cam setup will work fine with those heads but I would consult the cam experts.. like 93pony
Posted by TwoTone91GT (Member # 7254) on
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It's been 50/50 on swap or a trim haahahah
Posted by TwoTone91GT (Member # 7254) on
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So let's say I went and potted my intake or just bought a holley systemax what cam should I do? Custom?
Posted by 92stangLX (Member # 3252) on
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quote:
Originally posted by TwoTone91GT:
It's been 50/50 on swap or a trim haahahah
Well, if you put it that way then I would vote for the blower all the way. You will gain much more power that way.
Posted by TwoTone91GT (Member # 7254) on
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Would I be ok with 30 lb injectors or should I swap for 42s for the s trim
Posted by 92stangLX (Member # 3252) on
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42's
Posted by Bigjerry916 (Member # 8787) on
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Lol your gunna buy another S trim!!!
Posted by TwoTone91GT (Member # 7254) on
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Haha probably not haha
Posted by Bigjerry916 (Member # 8787) on
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I see a lot of people go with the AFR 185 with no port work so there's room to grow if ever going stroker. But then a lot of people say its way to much flow for a 306.
Posted by TwoTone91GT (Member # 7254) on
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How much does port work cost?
Posted by Bigjerry916 (Member # 8787) on
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No idea.
Posted by phildog (Member # 1214) on
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I would go with the AFR 185's on the motor in question, because it will be something that you can grow into, rather than out of. At lot of blown and stroked 331's and 347 run AFR 205's, and bigger, so don't be shy to get bigger heads now. It is only a matter of time before a stroker and boost finds its way into your car. Get the bigger heads, port match the lower intake to the intake side of the heads, and if the budget allows, get a custom cam from here:
http://www.camshaftinnovations.com/
to make it all work together.
Posted by TwoTone91GT (Member # 7254) on
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would 30 lb injectors still be good enough and will afr 185 still pass smog?
Posted by Bigjerry916 (Member # 8787) on
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30lb injectors good for 436 on a s/c set up and 533 naturally aspirated
Posted by TwoTone91GT (Member # 7254) on
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Will 185's pass smog and would I be better off port matching my heads and intake
Posted by F8LSN8K (Member # 7080) on
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quote:
Originally posted by TwoTone91GT:
How much does port work cost?
not much at all. for ur lower manfold maybe like $200 more or less for better info send him a email
mosstpsa@sbcglobal.net
Posted by F8LSN8K (Member # 7080) on
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quote:
Originally posted by TwoTone91GT:
Ok ok sounds good
Right now I'm in the process of going with long tubes 1 5/8 or can I do 1 3/4?
But my current setup is monsoon shorties I never heard of em? Catted h and flows pretty sorry exhaust
I was thinking about having a catted x with my long tubes and slp lm1 resonators but I'm thinking it'll be too loud
with afr's longtubes are almost a must. i dont have longtubes by choice on my afr's but i shoulda.
if u stick with ur current setup shorties are ok.
get a non catted x pipe, should make a lil difference in power now. will make significant differance in power with custom cam and afr's
Posted by TwoTone91GT (Member # 7254) on
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so afrs or portwork
Posted by phildog (Member # 1214) on
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AFR 185's are available with emissions holes. They will pass smog, but your choice of cam will have more to do with passing the sniffer test.
Posted by TwoTone91GT (Member # 7254) on
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So 165s, 185s, portwork, or s trim?
Posted by jordan_0806 (Member # 5888) on
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quote:
Originally posted by TwoTone91GT:
So 165s, 185s, portwork, or s trim?
S-trim....
Posted by TwoTone91GT (Member # 7254) on
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I know seriously
Posted by TwoTone91GT (Member # 7254) on
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I've decided on afr 185 smog legal
Posted by 331 coupe (Member # 8396) on
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i wouldnt bother changing heads my car only picked up 10 to the wheels going from roush 200 to afr 185s the only benefit was the 50 pounds off the nose of the car
Posted by Bigjerry916 (Member # 8787) on
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^^Your heads prolly flowed pretty good already ^^
Posted by TwoTone91GT (Member # 7254) on
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But I bet roush 200 are way better than gt40x's
Posted by jaejae (Member # 7958) on
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the heads you have are fine..there already an expensive head..switch to afrs will make more power but not worth 1500$ if you already have a set of pretty good heads
Posted by TwoTone91GT (Member # 7254) on
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you think a port job will be fine?
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