possibly picking up ls6 heads..
possibly picking up ls6 heads.. i have a chance of picking up some used LS6 heads off of an 02 z06 locally for a decent price. tommorow im going to set up a time to check em out and if things go as planned ill be picking them up. currently my mods are (torquer v.2) 232/234 .595/.598 112 + all the bolt ons. ill probably wait til next summer to slap em on so i can save up to clean em up a bit and maybe get a mild port job. would it be worth it to get them ported? will these heads change my compression at all? and would i need different head gaskets then stock? if i do get these ill obviously be swapping out the ls6 springs for my 918s and along with my hardened pushrods. will these heads do the trick?? need ur guys' opinions here! like always, there always appreciated!
I have the same cam and have a pair of the ls6 heads sitting next to me ready to go on. It is worth it to get them ported- you get what you pay for. If you are on a budget you can just replace the springs and pushrods and still pick up about 20rwhp. I am looking ot be in the 450-460 with the ls6 heads I will be throwing on.
I wouldn't expect a big gain with unported LS6 heads. We can get your LS6 heads CNC ported and CNC valved job for $650. Swapping to the LS6 heads will raise compression. If we do the porting, then the heads will have a 63cc chamber when they leave here. Let us know if you have any questions!
Brian
Brian
__________________
01 NBM Z28- A4 w/3.23s, TSP Black Lid, Hooker Catback, Pacesetter Headers w/ORY, ASP Pulley, Ported Throttle Body, TSP Torq. v3(231/234) Camshaft, TCI 4400, PRC Stg 1 Heads
Texas Speed & Performance
www.texas-speed.com
(806) 866-0734
01 NBM Z28- A4 w/3.23s, TSP Black Lid, Hooker Catback, Pacesetter Headers w/ORY, ASP Pulley, Ported Throttle Body, TSP Torq. v3(231/234) Camshaft, TCI 4400, PRC Stg 1 Heads
Texas Speed & Performance
www.texas-speed.com
(806) 866-0734
Can't speak for anyone else, but I gained quite a bit from swapping my stock 853 heads to untouched 243's. I gained 35rwhp and 25lb/ft. I still haven't gotten the dyno scanned though. Here's a link to the thread.
https://ls1tech.com/forums/dynamometer-results-comparisons/552427-stock-ls6-heads-results-inside.html
https://ls1tech.com/forums/dynamometer-results-comparisons/552427-stock-ls6-heads-results-inside.html
Originally Posted by orangeapeel
What?! 
Change out the stock pieces so that his cam will work with the heads. With his set up I would guess he would pick up around 20rwhp.
I am trying to figure out how you posted above me, that was kind of weird.
i dont know if u misread my post? but im already running 918 springs and tsp hardened pushrods on my 241's, so i will be swapping them over to the LS6 heads. is there any gasket that would raise my compression a little more over stock? if i could pick up a solid 15-20 rwhp over the stock 241s i probably wouldnt spend more money on a port job.. i hope thats the case! this summer i plan on adding a shot of nitrous so i would only assume getting them ported would make the response to nitrous that much better, but like some people here its difficult sometimes coming up with the funds! 
black01:
that was kinda weird!
black01:
that was kinda weird! Trending Topics
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If you have a good machine shop nearby, most will charge $50-100 for milling the heads. Benefits are twofold, they'll be 100% parallel (straight) and your compression will be bumped up a little with better quench. Since the heads are used, I'd look at milling to make sure they're not warped vs gaskets. Thinner gaskets are sometimes more prone to failure. JMO.
You could run the Cometic gaskets. It's a thinner gasket(metal) that would bump compression, but you also need to be careful with PtV when running a thinner gasket and the T2. When we run the vavle job on the stage 1 LS6 head, it actually increases the PtV which allows us to mill the heads.
Brian
Brian
__________________
01 NBM Z28- A4 w/3.23s, TSP Black Lid, Hooker Catback, Pacesetter Headers w/ORY, ASP Pulley, Ported Throttle Body, TSP Torq. v3(231/234) Camshaft, TCI 4400, PRC Stg 1 Heads
Texas Speed & Performance
www.texas-speed.com
(806) 866-0734
01 NBM Z28- A4 w/3.23s, TSP Black Lid, Hooker Catback, Pacesetter Headers w/ORY, ASP Pulley, Ported Throttle Body, TSP Torq. v3(231/234) Camshaft, TCI 4400, PRC Stg 1 Heads
Texas Speed & Performance
www.texas-speed.com
(806) 866-0734
I'll let you know what I put down with the mods in my signature on monday the 6th. Eastside performance is doing the tuning, so I'm pretty excited to see what they may be able to squeeze out of it 
Pretty similar, you have a larger cam though.
Pretty similar, you have a larger cam though.
billdog thanks for the information.. ill look into that!
brian- do u think milled ls6 heads would have a problem with PtV on a stock head gasket?
camarorick- thanks i would appreciate it! good luck with the tune
brian- do u think milled ls6 heads would have a problem with PtV on a stock head gasket?
camarorick- thanks i would appreciate it! good luck with the tune
Originally Posted by Brian @ Texas Speed & Performance
You could run the Cometic gaskets. It's a thinner gasket(metal) that would bump compression, but you also need to be careful with PtV when running a thinner gasket and the T2. When we run the vavle job on the stage 1 LS6 head, it actually increases the PtV which allows us to mill the heads.
Brian
Brian
And I was trying to figure out if you were saying that just swapping springs and pushrods was gonna give him 20rwhp. That is totally far fetched and not possible.
Originally Posted by sidewayz28
i dont know if u misread my post? but im already running 918 springs and tsp hardened pushrods on my 241's, so i will be swapping them over to the LS6 heads. is there any gasket that would raise my compression a little more over stock? if i could pick up a solid 15-20 rwhp over the stock 241s i probably wouldnt spend more money on a port job.. i hope thats the case! this summer i plan on adding a shot of nitrous so i would only assume getting them ported would make the response to nitrous that much better, but like some people here its difficult sometimes coming up with the funds!
black01: that was kinda weird!
black01:
that was kinda weird!man directly go with the nitrous without heads... almost the same money
http://nitrousdirect.com/ls1-nitrous.html
same price but 100+hp difference
true, what the guy above me said, . . i picked up some untouched bare ls6 heads from patriot for 385, . . during spring i will put them in with an undecided cam, imma jus hand port them myself and hit it with a small shot of nitrous, . . 75-100 and call it a day, . . might go with a g5x3 spec cam on a 110, set of ls6 heads, pulley, m6, lid, exhaust, maybe 430/395 . . with an extra 600 bux i could port the heads to get maybe 440/400 or hit it with a small shot of nitrous for 600 bux, . . 100 shot= 530/500, . . if you get a good deal on the heads get em, . . if not go cam only with a shot . .
yektas just jealous! i actually picked them up today ill get some pictures up in the morning. why i think im getting a good deal with these heads is cause my cousin goes to school at a local automotive technical school and i will be able to get them milled/ported etc. for free. i plan to not buy a cheap nitrous set up, im going to buy EVERY POSSIBLE thing i can to make sure its running properly and safely.
*im going to post some pics up before i start trying to clean them up a little, but can u clean up around the valves with some engine degreaser?
i actually picked them up today ill get some pictures up in the morning. why i think im getting a good deal with these heads is cause my cousin goes to school at a local automotive technical school and i will be able to get them milled/ported etc. for free. i plan to not buy a cheap nitrous set up, im going to buy EVERY POSSIBLE thing i can to make sure its running properly and safely. *im going to post some pics up before i start trying to clean them up a little, but can u clean up around the valves with some engine degreaser?