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MTI or AFR heads?

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Old 05-29-2005, 08:51 AM
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Default MTI or AFR heads?

Im on the market for new heads.

I have the TR224 cam and kooks headers

How much performance differance between the two heads.
I want to be at or just under 11:1 compression.

If im only lossing a couple RWHP. like 10 Im thinking about MTI heads

what's your car like with either
Old 05-29-2005, 10:46 AM
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I would get some AFR's for sure they are the best since they have a thicker deck and just a better casting since they are aftermarket castings. I believe
they quench better also so you can run a little more compression with a given gas octane.
Old 05-29-2005, 10:51 AM
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I got the stage 2R and seems to be working great there not mill so when I get the bottom end strock'd I can use a huge cam
but for the money I think MTI iare good
AFR's are too exp
Old 05-29-2005, 11:02 AM
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If money is not an issue and quality is what you seek along with best performance then AFR is definitly the way to go.
Old 05-29-2005, 12:07 PM
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Another vote for AFR's...
Old 05-29-2005, 12:48 PM
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afr's is the way to go. They have done far more research and development to get the most out of there castings, also have unsurpassed flow for the price. A little extra money=better heads in the long run.....
Old 05-29-2005, 12:56 PM
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AFR 205 vote here
Old 05-29-2005, 01:03 PM
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AFR's... hands down!
Old 05-29-2005, 01:33 PM
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i had mti heads and now i have AFR'S. if you don't go with afr's your loosing out.
Old 05-29-2005, 04:50 PM
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Funny... I was the first to post in here and some how my post got deleted...

I said the same as others above.. If you have the money go AFRs, if not do the MTIs. I have owned both....

Old 05-29-2005, 05:49 PM
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I think if I didn't have the money I would purchase prc stage 2.5 or tea stage 1.5 5.3's they are both 1500 without core charge and they flow just as well maybe a little better than the cnc'd afr's. Just a thought.
Old 05-29-2005, 07:23 PM
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IMHO, if you are building a NA 346 motor, the MTI Stage 2E are the way to go.

for $1700, they are a hard combo to beat.
Old 05-29-2005, 07:50 PM
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I vote for LPE LS6 heads.
Old 05-29-2005, 08:25 PM
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Originally Posted by SideStep
Funny... I was the first to post in here and some how my post got deleted...

I said the same as others above.. If you have the money go AFRs, if not do the MTIs. I have owned both....

nobody deleted your thread, are you sure you hit the "submit reply" button?

and my vote is AFR.
Old 05-29-2005, 08:40 PM
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Originally Posted by 52172
I think if I didn't have the money I would purchase prc stage 2.5 or tea stage 1.5 5.3's they are both 1500 without core charge and they flow just as well maybe a little better than the cnc'd afr's. Just a thought.
You would go with the tea stage 1.5 5.3's? i was wondering this myself if i should get the tea or the afr 205. I have been debating it myself, it seems that the tea's flow better...
Old 05-29-2005, 08:47 PM
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guys,

Im just looking for the AFR and MTI guys only.

I love the response of you've had both heads and like one more than the other

but we are on the right track with this thread
Old 05-29-2005, 08:48 PM
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Originally Posted by 52172
I think if I didn't have the money I would purchase prc stage 2.5 or tea stage 1.5 5.3's they are both 1500 without core charge and they flow just as well maybe a little better than the cnc'd afr's. Just a thought.
TEA's have a core charge. and you should know by now that flow numbers arent everything....
Old 05-29-2005, 09:15 PM
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hearing from guys that have been been with both heads is helpful
Old 05-29-2005, 10:07 PM
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Originally Posted by Phil'sC5vette
hearing from guys that have been been with both heads is helpful
Tested a lot of heads...

Put AFR 205's on the GTO.

Ed
Old 05-29-2005, 10:26 PM
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Originally Posted by EDC
Tested a lot of heads...

Put AFR 205's on the GTO.

Ed
AFR's



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