With trick flow 225 heads on it. Making 857 rwhp on a Mustang dyno love them on the car... 
Trickflow Vs. AFR heads for FI?
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From: bentonville, arkansas
Trickflow Vs. AFR heads for FI? i noticed most of the FI guys are using AFR heads, and most of the NA guys are using Trickflow heads. just wondering why? do the afr's seal better or have a thicker deck surface? tried a search but didn't get much.
edit: I just scrolled thru the first page and not even 10 threads down jeremym has twin70's on his 441 Trick flow heads thread going and 98cobrakiller has his 416 twin 70's AFR heads thread going too...
Last edited by Fb0dy0nly; Jul 29, 2010 at 08:34 AM.
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From: bentonville, arkansas
i know that their are a lot of people running TFS on if FI but it seems that most people are running AFR. i was just wondering if their is a reason for this? i am partial to TFS, but i wasn't sure if their was something i didn't know about the AFR.
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From: bentonville, arkansas
AFR's are a 15 degree head, Trickflows are not
AFR's are 4 bolts per cyllinder, Trickflows are 4 bolts with the option for 6 bolts.
Both are great, I have TFS on my GTO and am putting AFR's on my LS3 Cobra.
They are great guys and I have always had great results from there head work.
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From: cookeville, tn
Price and if you get TEA to do more work on the heads. You will not go wrong with which ever one you go with. With what the unit you will be using I dont think you will be able to tell the diff in the end just my 2 cents.
Both seem to perform about the same. TFS does have the 6 bolt option though if you are building a 6 bolt block.
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From: cookeville, tn
Why?
As stated, the AFR is a direct factory replacement head. It changes no geometry and can use the stock rockers without issue. AFR's customer service is FAR superior to TFS/TEA. I've had to deal with issues with both brands. The difference was that AFR went above and beyond to make it right and presented NO fight on the matter.
Both seem to perform about the same. TFS does have the 6 bolt option though if you are building a 6 bolt block.
As stated, the AFR is a direct factory replacement head. It changes no geometry and can use the stock rockers without issue. AFR's customer service is FAR superior to TFS/TEA. I've had to deal with issues with both brands. The difference was that AFR went above and beyond to make it right and presented NO fight on the matter.
Both seem to perform about the same. TFS does have the 6 bolt option though if you are building a 6 bolt block.