Spellbound

I need to replace my heads do to some bent valves. I have LS6 cores, so I am not concerned with a core charge.... I was thinking TEA 2.5's LS6's, or the new AFR's, or should I just repair the bent valves on the TEA 5.3's I have on the car now?.

TIA

SouthFL.02.SS

Both your options kick *** (2.5's or AFR's).

Since you have the LS6 cores already (something many people wish they would have), I'd go for the TEA Stage 2.5's.
Ask for the finish that provides more torque (this would sacrifice a few peak ponies, but is well worth it).

Here's a link... https://ls1tech.com/forums/showthrea...ht=TEA+2.5+ls6

jrp

iTrader: (16)

those TEA 2.5's are straight ******

Bowtieman4life

iTrader: (1)

I would sell the cores for $1,000 so that someone interested in them will save a bit of money on the core charge. Then I would apply therest to some AFR's. If you go through TSP you will pay $1200 out of pocket for a new set of AFR's. Small runners + high flow should equal kick *** unless the claims for AFR are not legit. As big as AFR are, I don't think they would lie about their numbers. Good luck

JBsC5

Who gets a thousand dollars for ls6 heads?

The reason I'm asking is that .....

I recently had TTP install a 224/224 .563 114lsa cam with the crane dual valve spring kit (rated to .650 lift) on my ls6 heads about 3 months before the AFR heads released and now I'm thinking it would be cool to go AFR heads.

Would like to sell my LS6 heads w/the dual crane valve springs already installed for $900

Thanks

JB

Josh

iTrader: (9)

$1000 is the norm for stock, used LS6 heads from what I've seen.

Josh

SouthFL.02.SS

I found a set for $800 once, but yea, $900-$1000 is what you expect to pay.
Maybe AFR's coming to the market will lower the price of LS6 cores.
Who knows?

Has the FAST LSX intake really dropped the price of LS6 intakes as much as people thought they would? Not really.

It all depends on how much better the AFR's perform over GM cast ported heads. No doubt they will be good heads, but if they substantially raise the bar of performance, everything else will adjust in terms of $$$.

PREDATOR-Z

Raised the bar by 24 rwhp on a 1>1 swap for a Z06 at LAPD.

SouthFL.02.SS

Yes. we know.

The Guy in MY 99TA

IMO the TEA's would be the better route. I'm not gunna say that the AFR's aren't good heads..... BUT I have heard several local engine shops say that they don't flow what AFR says they flow(not talking about the ls1 head just other heads in general). That leans me to a stock type ported head. UNLESS Brodix comes out with a LS1 head!!!!

Josh S.

mattz06

Patriot!

foff667

iTrader: (2)

i would see what tea could do for you sinc eyou already own their product...maybe upgrade you for little cash...sell those ls6 cores and have some $ in your pocket as well as a few more ponies more then likely

Bowtieman4life

iTrader: (1)

Disregard my earler advice. Keep the ZO6 heads on your girlfreinds car and have the TEA heads fixed and redone. Remind the owner of TEA what happened with these heads and have him cut you a nice deal fixing them or porting them out to 2.5 stage heads. Then sell them to a TEA supporter and buy the 205 AFR heads. Finally, once you install the AFR heads let me know what you dynoed so that I can decided wether to go with AS heads or AFR. Then again you could always run the TEA's but that wouldn't help me with my decison J/K. Good Luck

Spellbound

Yes, I have Dons old motor, what I don't have is the cam that was in it at the time. Check my sig on what those heads do now. The 428 was only at 6k rpm's also. I converted my car to a m6 and we had a little problem with the rev limiter, I have not dynoed since then. I imagine its a little higher than 428. Check out the tq numbers too. BTW The 243's are not on my gf's car.

I do have a pair of year old AS stage II's for sale, lol

STLWS6

iTrader: (5)

I would buy the BARE AFR CASTINGS and have them ported by someone reputable, GTP, Meaux Racing, TEA, Absolute Speed. Better castings will make better power it comes down to the porter.

PREDATOR-Z

Too early to rely on that. Those heads are not LS1 castings but a brand new redesigned casting with small intake port and designed with that in mind for high velocity.

The 225's are also new castings (I'm not certain though), You can't take a 205 and open it up to 225 and expect big gains

These heads put into practice CSTRAUB's argument about that big ports do not necessarily mean big flow numbers.

Overporting would have a serious reverse effect on those and cannot be treated as LS1 castings (Bigger ports means more flow etc...)

The best one can do now is cleaning up the originals in the bowls, deburring rough areas etc...

It will take a lot of testing by renown porters to find ways to maximise their potential.

Also one could port match intake and exhaust.

texada

iTrader: (3)

I am waiting on some track times from just head swaps on different cars, Flow numbers don't mean anything if you can't back it up at the track

Damian

iTrader: (89)

One valuable lesson i've learned over the years of modding is to NEVER buy a new product for an LS1 as soon as it hits the market. 9 out of 10 times there are LOTS of revisions and changes made before the product is proven...

That being said, TEA heads have been tried and proven over and over. Their customer service is also far above most. Sounds like a good combo to me..

I'd do the 2.5's for sure

MUSTANGEATER

iTrader: (10)

I was told as Cast the 205's and 225's are the same part #, I may have heard wrong. I agree buy the bare cast have it ported. Believe it or not people have had some of these castings for quite some time and have had a chance to port them already....


Personally for my Money I'd go to someone like Ed Curtis and have him make your heads and cam combo.

Bowtieman4life

iTrader: (1)

Damn! You weren't kidding. 428/407 is sweet w/ a 12bolt. Okay, desgregard the part about selling them and reinstall them on your car after you get them fixed. It would be the cheapest route. For some reason, I thought you installed Don's old ZO6 heads on your girlfriends car. Its been a long time since I've seen either of you at the track. Good Luck either way. Although, I would love to see what kind of numbers AFR's will put down before I buy some. Later

Why are you selling the 1 year old AS heads? Have you run them at all?