Chicago Crew UnderBoss

iTrader: (1)

Most know that when it comes to forced induction aftermarket LS series heads are not nearly as important as they are with N/A applications, and that stock LS6 heads make BIG POWER on boost (just look for my sig on bone stock LS6 motor in my 02 Z06).

I am having a forged 347 LS6 shortblock with 224/230, 114 +2, .581/.592 comp blower cam, and for now am planning to run my stock LS6 heads, and should make close to 700rwhp on 12 lbs of boost (and 700rwhp is my goal). Million dollar questions, is it worth the $1,200 to $1,800.00 + dollars to get some Patriot ported LS6 heads, Dart 225s, AFRs, Ported TEA heads to run on my new set-up or not.

I am thinking not on a street car that sees 98% of its life on streets/highway, but do want to have the most responsive set-up for performance on and off the boost and are aftermarket heads worth head for the same set-up I will run on my forged motor, D1SC Cent. Superhcarger kit from East Coast Supercharging!

If yes, what heads would work great and are a great value and I don't want LQ9 72cc heads, as I am looking to make more power with less boost, and am staying with a higher compression (tham most) between 10 to 10:5 t 1, which makes BIG POWER with a boost (as proven on my stock LS6 motor)!

2000 Tran Zam

iTrader: (2)

if your looking to make 700rwhp you can do that no problem on stock ls6 heads with FI... I would spend the money else where...

deviate42

iTrader: (2)

not the most cost effective, but ported heads + FI =

CHRISPY

Keep the heads you have

Chicago Crew UnderBoss

iTrader: (1)

Decided that you live only once and just order brand new TEA Stage II LS6 heads that flow over 320 cfm at .650 lift and over 300cfm at only 5500rpm, for my brand new forged LS6 347 forged blower motor. Heck its only money and I am STOKED!

I can also now sell my strong running existig LS6 stock Longblock with 918 springs as a complete longblock when forged motor goes in this winter!

98turbls1

iTrader: (17)

Actually it's better to spend money on heads that have a thicker deck compared to better flowing heads because you can just up the boost... The problem with boost and heads is that they start to raise because of pressure in the combustion chamber... Just go with the LSX block and a 6 bolt head.. =) Then no problem of pushing water... Seriously think about a AFR or ETP head (4 bolt)...Anything else would be money waisted in my opinion...

52172

iTrader: (2)

yea you did make a mistake there if you were gonna replace the heads with anything they had to be aftermarket casting with the thicker deck. You just spent money on heads that flow better, but will not stay down anybetter.

Chicago Crew UnderBoss

iTrader: (1)

NAH, I will be in good shape b/c looking to make more power with less boost on this set-up and will not be running more than 10 to 12 lbs. 10 to 12 lbs of boost will get me close to my goal of 700rwhp, and going to keep compression to healthy 10:5 to make the big power with less boost. At 10 lbs of boost now with stock LS6 heads I have 0 issues so this won't be a problem for me, nor will 12 lbs cause any issues. I totalling agree with you guys if i was going for 14+ lbs of boost (which i'm not) and will have no need to later (as I have been boosted for over 2 years and am content at these power levels).

I can't even hookup now on the street with 600rwhp in the first 3 gears, and with my Z06 being primarily a street/highway driven machine, with occassional road racing and drag racing once a year, 700rwhp is MORE THAN enough power for me.

NemeSS

iTrader: (127)

agree 100%
u WILL eventually want to crank it up

Chicago Crew UnderBoss

iTrader: (1)

GUYS, trust me when i tell you that the EXPERTS at East Coast Supercharging, the premier corvette supercharging tuners in the Country, are running 14 lbs of boost on LS6 heads with their NOVI 2000 blower, on forged 346 LS6 motors, making well over 750rwhp (without any lifting issues at those levels).

Also trust me when i tell you that I will never be looking to make more power than that 100% guaranteed!

BigBenz

iTrader: (7)

humm i need to look a few things up.

chriswtx

iTrader: (5)

you will be fine at 12-14psi of boost...It will scream for sure..Easy 700rwhp or more..

Chicago Crew UnderBoss

iTrader: (1)

I hear ya CHRIS its been proven time in and time again at those boost levels, and that lifting issue are when the guys go for the HUGE POWER with boost levels in excess of 14 lbs.

Hope your feeling better bro and when will you finish the dyno tuning of your BEAST, this Monday? GOOD LUCK BUD!!

chriswtx

iTrader: (5)

sometime this week. its supposed to rain monday...