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LQ4 Build - Cams and Heads

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Old Aug 17, 2012 | 10:06 AM
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Default LQ4 Build - Cams and Heads

I have an LQ4 out of an Express one I am swapping into my Legacy. My goal is to get it up around 400 whp. I am looking to put some L92/LS3 head on the LQ4 block. The block is out of an 03 and has the dished pistons. I am not sure what cam choice will be best but the car will be a weekend cruiser with occasional autocross and drag strip fun.

I would like recommendations for a cam and springs that will work well with this combo where I do not have to cut of valve reliefs in the pistons

Last edited by btlegacy; Aug 25, 2012 at 02:49 PM.
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Old Aug 25, 2012 | 02:49 PM
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This will also be going through a T56 if that needs to be considered
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Old Sep 6, 2012 | 09:37 AM
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The motor is coming together very nicely now. Just need to pick up injectors and a few other odds and ends

LQ4 6.0L Block
L92 Rectangle Port Heads
LS3 Blue Springs and Retainers
Comp XR273HR Camshaft (220/224 .530/.534 112LSA)
Billet Timing Chain Kit
Melling OEM Oil Pump
GTO Front Sump Oil Pan and Pickup
L76 Intake Manifold
LS7 Fuel Rail
LS3 Corvette Water Pump
LS3 Corvette Harmonic Balancer
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Old Sep 6, 2012 | 01:06 PM
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why did you bother buying heads and itnake for such a mild goal?
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Old Sep 7, 2012 | 09:40 AM
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The truck intake would not have fit under the hood. The heads were bought for future upgrade consideration
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