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AFR205 or ET215

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Old Mar 22, 2006 | 09:20 PM
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Default AFR205 or ET215

Been searching for awhile and have a hard time deciding on what head to get. Everbody seems to like both. But what will be the best set up from the people htat have tried first hand. This is what I already have, Ls6 intake, asp pulley, 4.10 gears, lid, long tubes, and ported tb. They seem to be around the same price. Also my bottom end is stock. Maybe in the near future I may upgrade to bigger CI. But for now the 346 will do. Also i'm kind of stuck on the f14 cam to go along with the setup. if somebody thinks differently please speak up. Thanks
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Old Mar 22, 2006 | 09:53 PM
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I don't have my setup completed yet but I have everything ordered and I'm using an F13 cam. I went with the AFR 205's over the ETP 215's just because nobody has the ETP's and people have been waiting for weeks to get theirs. I think either head will provide similar results if they are setup for the same compression IMO, but who knows (not enough data on the ETP's yet). One thing I like about the ETP's is that I would not have to flycut to run 11.25:1 compression with the F13 and that is what has to be done with the AFR's.
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Old Mar 22, 2006 | 10:46 PM
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Get AFR they are the best.
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Old Mar 22, 2006 | 10:52 PM
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There are guys running AFR 205's with 11.2 compression w/o flycutting.
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Old Mar 22, 2006 | 11:16 PM
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Originally Posted by Ksett
I don't have my setup completed yet but I have everything ordered and I'm using an F13 cam. I went with the AFR 205's over the ETP 215's just because nobody has the ETP's and people have been waiting for weeks to get theirs. I think either head will provide similar results if they are setup for the same compression IMO, but who knows (not enough data on the ETP's yet). One thing I like about the ETP's is that I would not have to flycut to run 11.25:1 compression with the F13 and that is what has to be done with the AFR's.
What was the lead time for your heads?
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Old Mar 23, 2006 | 06:00 PM
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Originally Posted by joshp14
There are guys running AFR 205's with 11.2 compression w/o flycutting.
How much was shaved off the head and what size gasket are you running?
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Old Mar 23, 2006 | 06:02 PM
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Originally Posted by sscam68
What was the lead time for your heads?
TSP had a set of AFR's in stock when I ordered a couple weeks ago.
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Old Mar 23, 2006 | 06:34 PM
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Thunder Racing had AFRs in stock last time I checked.
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Old Mar 23, 2006 | 07:06 PM
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Originally Posted by joshp14
There are guys running AFR 205's with 11.2 compression w/o flycutting.
Mine's 11.2-11.2 compression and I've bounced ny forged motor past 7000 rpm several times. AFR's are great ... don't know anything about the ETP's, so, can't really comment on them.
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Old Mar 23, 2006 | 07:43 PM
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Originally Posted by joshp14
There are guys running AFR 205's with 11.2 compression w/o flycutting.
I'm one of them, F13 on 112+2 with AFR's at approx. 11:1, tons of valve clearance on both intake and more importantly the exhaust side. Go with the AFR's just because you will be guaranteed good results, I know there are other good heads out there but results vary with them, rarely do they vary with the AFR's. I hit 455 rwhp, 421 rwtq, with 90/90 set-up! Also remember, check your valve clearances with EVERY combination no matter what cam you use. Tony Mamo should hire me to be AFR's pr guy, that is how much I like AFR's heads. By the way, I am running stock MLS gaskets.
That f14 probably will be tight on your p-v clearances, also remember that a mechanical over-rev will bend valves in a STOCK motor and there is nothing to remedy that other than good shifting. I bent 8 valves on my stock 2000 c5 so I know first hand about it. Also, the best valve spring money can buy is never a bad thing.

Last edited by FULTILT; Mar 23, 2006 at 07:54 PM.
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Old Mar 23, 2006 | 08:03 PM
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Originally Posted by FULTILT
I'm one of them, F13 on 112+2 with AFR's at approx. 11:1, tons of valve clearance on both intake and more importantly the exhaust side. Go with the AFR's just because you will be guaranteed good results, I know there are other good heads out there but results vary with them, rarely do they vary with the AFR's. I hit 455 rwhp, 421 rwtq, with 90/90 set-up! Also remember, check your valve clearances with EVERY combination no matter what cam you use. Tony Mamo should hire me to be AFR's pr guy, that is how much I like AFR's heads. By the way, I am running stock MLS gaskets.
That f14 probably will be tight on your p-v clearances, also remember that a mechanical over-rev will bend valves in a STOCK motor and there is nothing to remedy that other than good shifting. I bent 8 valves on my stock 2000 c5 so I know first hand about it. Also, the best valve spring money can buy is never a bad thing.
How much was shaved off your heads?
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Old Mar 23, 2006 | 08:14 PM
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Im partial to ETP because of the added vavle clearance of 11* heads.

Last edited by Patrick G; Mar 24, 2006 at 07:01 AM.
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Old Mar 23, 2006 | 08:20 PM
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Both are great heads, the AFR have more then proved them self as a top performer.
ET is new, but has all the right stuff to make it one of the best LS heads on the market, also the ET 215 will give more PTV with more compression then any other head out there right now.

I also like the FM14 cam, either head will make a killer set-up.
Bob
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Old Mar 23, 2006 | 10:32 PM
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Thanks for all the suggestions.
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Old Mar 23, 2006 | 10:39 PM
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What kind of valve drop on the 215s vs. stock vs. AFR205s
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Old Mar 24, 2006 | 07:03 AM
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Gentlemen, let's keep this a technical discussion. Flaming and childish behavior on this board will not be tolerated.
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Old Mar 24, 2006 | 09:25 AM
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Originally Posted by eamador11
Get AFR they are the best.
Good technical info. here.
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Old Mar 24, 2006 | 10:33 AM
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Originally Posted by Patrick G
Gentlemen, let's keep this a technical discussion. Flaming and childish behavior on this board will not be tolerated.
Huh?! Did you delete the Flaming post? I didn't see anything remotely out of line above. Hard to figure out why someone would flame a suggestion for either of these heads...
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Old Mar 24, 2006 | 10:45 AM
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Originally Posted by mr2guru
What kind of valve drop on the 215s vs. stock vs. AFR205s
The AFR 205 has close to .180 valve drop (about .015-.020 more than stock 243 casting) but the 11' valve angle of the ETP head will certainly provide more.

Tony M.
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Old Mar 24, 2006 | 01:41 PM
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Originally Posted by FUN LS1
Huh?! Did you delete the Flaming post? I didn't see anything remotely out of line above. Hard to figure out why someone would flame a suggestion for either of these heads...
Yes I deleted the flaming posts. Don't need that kind of behavior on a tech board.
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