777

iTrader: (21)

not saying anything negative to him or afr...but i'd rather see someone that doesn't actually sell the heads test it... i have not doubt that they perform just as good if not better than the ls6 heads...

texada

iTrader: (3)

I also read a post Can't remember the name (Corvette Forum) that they were disappointed in the AFR's. I am not doubting how they perform, I just want to see someone who doesn't sell the AFR's post some track numbers. Until proven, LS6 heads rules

DanZ28

iTrader: (5)

Here is some interesting reading http://www.norcal-ls1.com/forum/showthread.php?t=36667

Don't flame, the setup's are not Identical (but close), it's just interesting reading

Dan

The Juggernaut

iTrader: (7)

There are alot more aftermarket heads coming out.
ET performance, ALL-PRO, Edlebrock, ect...

If i had to make a choice right now, i would get AFR's just because they make
a better head than stock.(deck thickness/spring pockets..)

fastbasser

iTrader: (1)

QUOTE "not saying anything negative to him or afr...but i'd rather see someone that doesn't actually sell the heads test it... i have not doubt that they perform just as good if not better than the ls6 heads..."

With all these 480-490 hp AFR 346s, I would have expected to see a shitload of 10 second cars out there. Same thing on the Corvette forum....

From what I can see, only Tony has posted has posted track info. (forgive me if I missed a post or two) I have had some tuners tell me they have opted not to use them.

JMHO

LS1LT1

iTrader: (16)

Cartek LS6 Stage 3X heads

Caveman

iTrader: (2)

The thicker deck makes AFR the best choice for FI or nitrous cars. I bet all the 8sec soon to be 7sec LS1s will have AFR 225s.

The Guy in MY 99TA

For a head that would be sent to my door I'de do the TEA stage 2.5's. The flow numbers are a little better, I know the AFR's would be an out of box head and I believe it would take extra porting to get them to flow with the TEA's. I'm not bashing the AFR's at all.... I'm gunna go with the 225's and have em hogged on my engine but for a h/c engine I'de use the TEA's.

Josh S.

PewterZ28

iTrader: (1)

It is dissappointing that most of the AFR guys aren't posting any drag strip numbers because I'm sure they would be impressive.

I'm about to purchase a set of AFR 225's, hand finished by one of the sponsors (or not if it is not recommended), FAST 90 mm intake & TB and a custom cam. My current best ET is 11.28 @ 119.70 with just the C1 cam. I'm going for an NA all out effort on the stock bottom end. You can bet I will be posting my drag strip numbers come this spring. I'm hoping for mid 10's or better. Right now I think Hawkn'01 is the quickest NA stock bottom end car with a 10.37 @ 129. That would be a nice record to shoot for.

Rappid Motorsport's package is almost exactly what I'm looking for except I've already received a quote from TEA (AFR heads though) that also includes a bigger oil pump and dyno tuning for cheaper. I'm also still waiting for Futral Motorsports and LG Motorsports to send me a quote. Once all the quotes are in, I'll be on the phone spitting out my credit card numbers.

JS

iTrader: (4)

CM Inc. S1 LS6 heads
Check the sig

SAM98WS6

Didnt you post AFR all the way on the other page?

Go with proven LS6 heads from Rapidmotorsports, MTI or Cartek...why take a chance on dyno AFRs? thats stupid. There have been posts of guys not getting near what they thought...

Camaro_Zach

iTrader: (19)

yes taking a chance on one of the best SBC head builders is stupid. SOMETHING TELLS ME tony and the gang JUST MIGHT know what they are doing...JUST MABYE! i mean..they are the new kids on the block, i realize they dont have anywhere NEAR the experience and knowledge as these ls1 shops that have been around for..oh god...lets see...3 mabye 5 YEARS! JESUS! </sarcasim>

TonyJ

Compare the thickness of the AFRs in the areas where the LS1/LS6 heads tend to have blowby on F/I cars. The problem with LSx heads lifting under high cylinder pressure should be helped greatly by the beefier AFR castings.

SAM98WS6

Wait a minute...he's not talking about off the shelf AFRs...which are as good as any Stage 2 heads...He's talking the best heads money no object...so that means taking the new AFR and having someone go over it...there is a learning curve to that. The good shops have been doing the LS6 heads for years and know how to do it..those LS6 heads blow away the AFRs that are available now.

Yea AFR makes good heads...but look at what they are improving upon in the past...now the LS6 head is alot better than any other GM head ever produced...so the gain is going to be less. Just remember this..alot of shops have posted on here "dyno" numbers to get sales...its a common thing. Dont jump into anything blindly... AFRs are not the clear answer...yet.

SAM98WS6

Only way you can say a heavily massaged AFR head is better than an LS6 is to take a car with the LS6s..dyno/race it...swap heads...then dyno/RACE it. Until that happens there is no way anyone here can say AFR. Everyone here recommending the AFRs is blowing smoke..
How about it AFR? Lets see it. What potential do they have?

JS

iTrader: (4)

I did say AFR

I had a local head porter do the heads on my car and was just showing u the results on my car.Truthfully I'd go AFR if I had the coin,they are the best for broad tq and power.

What does your 383 run by the way,I've never saw any et's from u...

SAM98WS6

So you'd take an AFR over a Cartek/MTI S3 LS6? Wow...
Am I the only person that realizes if Id swap out my good S2s to AFRs the gains would be minimal?
I got a buddy going AFRs (from stock) on soon...we'll see if they are as good as LS1 Stage2s...let alone LS6s
I dont know what it runs yet....

JS

iTrader: (4)

I had Carteks X setup...
The best it ran was 11.14@122 w/my veter locked

I'm running a MILD SETUP NOW (check Sig) and it runs 10.80's@124 so YES I believe if I went AFR 225 and say a MS3 cam my car would run better and make at least 20 more RW.I wouldnt change my setup for 205's but again if I didnt have heads I'd buy AFR's

gaga

thanks for all the feedback and PM's guys.... I guess if we can alll agree on one thing, it is that it sure as hell isn't a clear cut decision....


another thing is that nice sets of used ls6 heads are somewhat affordable now... I hate to think how much a nice port job on the AFRs would cost!

SAM98WS6

So your stage 1 LS6 heads are better for you than Carteks LS6 ported heads?
Id bet youd go slower with 205s too...