LS2 heads help

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Feb 18, 2011 | 04:30 PM

pbm.cc

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Racer

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From: Dallas TX

LS2 heads help

I currently have a C6 LS2 m6 at home. it's has:

Fast 102
Tsunami cam from Texas Speed
Kooks LTs and o/r X pipe
Modded Z06 mufflers
Dyno tuned and made 470rwhp

I'm researching heads as I am planning on buying some but can't decide... I wanted to try the 225 trickflows or AFR I think has some 235 or 245...

What do you guys recommend?

Feb 18, 2011 | 04:42 PM

PRE-Z06

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From: Fort Worth, Texas

I'd recommend the PRC 227 as you can still use your factory rockers and they have plenty of PTV clearance to mill them down. You should easily be over 500rwhp and they happen to be $200 off right now, Chris

Feb 18, 2011 | 04:57 PM

Blue Devil 08

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From: Port St. Lucie Florida

LS-3 CNC Heads From GM Performance Parts flow Great for the Price.350CFM for $1256 for the Pair !

Feb 18, 2011 | 05:07 PM

pbm.cc

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Racer

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From: Dallas TX

Well with heads I want to be able over 550rwhp...

http://www.gmhightechperformance.com...heads/tfs.html

I like this research but I'm still at a loss...

??????

Feb 18, 2011 | 05:23 PM

Blue Devil 08

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For the price of the LS-3 CNC Heads you cant go wrong considering most aftermarket Heads R twice the Price and i am sure they come in different stages for a little more money.Yes, i would do research to see what is the best head to make 550 rwhp.

Feb 18, 2011 | 05:37 PM

Stang's Bane

Racer

Joined: Dec 2006

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From: New Richmond, Wi

Quote:

Originally Posted by pbm.cc

Well with heads I want to be able over 550rwhp...

http://www.gmhightechperformance.com...heads/tfs.html

I like this research but I'm still at a loss...

??????

You won't even come close to 550 rwhp with any head on A na stock Shortlock build and remain streetable. The best chance you would have IMHO is the small bore mast ls7 heads with the appropriate fast intake manifold.

Feb 18, 2011 | 05:44 PM

PRE-Z06

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From: Fort Worth, Texas

Quote:

Originally Posted by pbm.cc

Well with heads I want to be able over 550rwhp...

http://www.gmhightechperformance.com...heads/tfs.html

I like this research but I'm still at a loss...

??????

That was flywheel hp, not rwhp...I bet with a light weight clutch and the PRC heads you'd see 525rwhp easily given you already made 470 with stock heads.

Feb 18, 2011 | 07:40 PM

pbm.cc

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Racer

Joined: Nov 2009

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From: Dallas TX

Quote:

Originally Posted by PRE-Z06

That was flywheel hp, not rwhp...I bet with a light weight clutch and the PRC heads you'd see 525rwhp easily given you already made 470 with stock heads.

470 with the stock TB and the Airaid CAI and factory MAF. When the car was tuned... It was too rich... They had it at 12.4 a/f... I have bought the LPE CAI and the 100mm MAF, I have the NOS LS2 wet kit and and a retune. My tuner said adjusting my a/f to 12.8 should give me about 5rwhp more and the CAI and MAF about 10rwhp more... I'm sue the wet kit should give me the hp requested but on N/A I want to be as close as possible to 550rwhp...