destroyerSS

iTrader: (2)

Now i'm thinking about going with Absolute's ls6 stage 2.5 heads all my mods in sig. What type of #'s do you think it would put down. Also comming soon is a LSX intake {not sure 78 or 90} LCA relocation brackets,spohn adj torque arm. Also do you think i should wait for the AFR 205 heads? or 5.3 stage 2.5?

gomer

iTrader: (13)

With that cam you have and a set of Patriot LS6 STYLE heads I put down 451rwhp 403rwtq.. without an aluminum flywheel like you have. Also at the time I didn't have an electric WP, or a good ported TB. Lotta head for a little $$, same heads that are on the combo I'm running now.. but we all know dyno numbers don't mean $hit

SPANKY LS1

iTrader: (24)

Or you could end up like the guy with those same heads and cam and put down 408 rwhp.

[Disclaimer: I am joking with Gomer, not vendor bashing. No malicious intent is present in this thread.]

Seriously, AS has their stuff together. I got my Stage 2.5 5.3s today, and the flow numbers are awesome, better than on AS' website. I can't wait to get them on my new forged 347 with my 24x/24x cam and my 90mm LSx and see how they fare... Call Jay and see what he recommends. Search for information and read all you can, you'll see what people think and say about AS heads, and how they perform. Good luck, Shawn

gomer

iTrader: (13)

One thing I forgot to mention is that I didn't have to flycut my pistons to run that cam with the LS6 STYLE heads, if the stage 2.5's you get from any company have been milled to get the compression up... you'll have to flycut.

absolute

The stg2.5 is my most up to date head with every trick in the book. Rest assure everyset of my new stg2 and 2.5 heads are all hand finished by me with every port flow tested up to 3 times each. I pride myself on no exuse heads, you will not find valve seat air leakage or inferior parts cuasing oil consumption and seats falling out. Nothing but top notch products all ported, assembled and sealed by me with my approval. Feel free to call or email me with any questions 516-987-9392 sales@absolutespeed.net
Jay

Gomer- Im really glad you didnt have to fly cut your pistons, you must be so proud.

offaxis

iTrader: (19)

Destroyer

I think the AS ls6 stage 2.5 heads would be the way to go. Those heads are on atleast 3 500 hp 346 N/A cars I know of already. It seems others are still chasing the dream. Dont be fooled by others man. Just call LG and ask him about the heads. He can use any heads out there and he uses A.S. heads.

mikemodano9c

SPANKY LS1

iTrader: (24)

For comparison sake, Jays heads were on a 232/240 cammed, 5.3 headed car that did 446 unlocked, also with a bad trans. (446-397=49 )

destroyerSS

iTrader: (2)

Jay, do you think it's worth it for me to go with the 2.5 ls6 heads or the 5.3 heads? My thought is if i'm gonna do it do it right!! How much additional power is to be gained going with the ls6 head? And what compression will i end up with? Lastly do you have these heads with the TSP 231/237 cam out there. Sorry for all the ?'s Thanks Shawn

destroyerSS

iTrader: (2)

mikemodano9c

i was laughing at jay's comment to gomer...

Scoobie

iTrader: (8)

Destroyer, Ive got a set of Jays Heads going on my soon to be near 500 RWHP Stock Cube engine.( its getting put together as we speak ) From what Jay told me, the LS6 head will gain more CFM up top in the lift range resulting in more power. Deal is, if you are staying stock cubes, and dont mind leaving a few extra Ponies on the table, the 5.3 is the way to go. If you want MAX effort, and are willing to pay the extra 1,000.00 - 1,500.00 dollars for the LS6 head, then the LS6 stage 2 is the way to go. Stage 2.5 might be too much for a stock bottom end set up. Now, on the other hand, if you intend to upgrade in the future, say to a 382, 387, 408, whatever, then i would look at the LS6 head for max Effort N/A and the 6.0 Head for max effort Forced induction. Im running higher compression pistons with 6.0 heads so that i dont have to mess with milling for added compression and still come up with more compression then say an LS6 head. My advice, Call Jay, tell him what you have, he will NOT sell you anything he doesnt feel you need. Also, if your looking for a good matched up Cam shaft, Call Matt at TTP. TTP is located within 30 minutes of Jays shop. They are friends and will put together a KILLER package for you at a super competitive rate. Cheers
Sc00bs

99 Black Bird T/A

iTrader: (4)

I'd go with the Absolute 2.5's either 5.3's or LS6. Absolute products are more consistant and problem free. Unlike the on going qualilty issues and inconsistant results one of the other products mentioned are well know for. I think TEA's 5.3's or LS6 or 6.0 heads would also make a good choice for your combo.

As for the AFR's the version that AFR is offer ported for ~$2500 will probably need some additional tweaks to get the most out of it. So there will be an additonal expense to fully optimize the new AFR. However, if you get a bare AFR casting ~$1500 and send it to Absolute to TEA you might really end up with something special, if you willing to wait for the R & D.

I think the best thing about the AFR's may be the price of the LS6 stuff will start to drop.

destroyerSS

iTrader: (2)

Yeah i think that i'm going to go with the absolute's 2.5's for a couple of reasons. 1st they seem to have a great reputation. 2nd they seem to produce good #'s and times. Also not to bash anyone and without myself knowing about individual dyno's and such I think i would be upset if my car dyno'ed in the low 400's with a stage 2 head setup and my 231/237 cam. Now granted these cars might go to the track and kick *** but i think i would always think in the back of my mind that i left something on the table and that i could of gotten more out of the package.

CrazytrainWS6

im looking for a set of heads and im torn between the S2 LS6 and the S2.5 5.3s. i dont want to spend tons of money, but i want the best heads i could get for the money. maybe if there's enough people interested, there could be a GP in the near future

Damian

iTrader: (89)

Jay's stuff is top quality ****. No worries, and as he says......NO EXCUSES

mike m

iTrader: (6)

Both are great sets of heads. I think you should just talk to Jay about what cam you are planning on running and he will suggest what head for your setup.

destroyerSS

iTrader: (2)

so what kind of #'s do you think i'll put down with the absolute LS6 stage 2.5's LSX and all of my other mods? I would like at least 450 rwhp & 420 rwtq!!! So whada think

JZ'sTA

iTrader: (23)

I think you will be in that range.
Jays heads are defentially top notch. But them and be very HAPPY you did.