Need advice choosing heads for a cammed 6.0L
10-14-2009, 04:06 PM
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Need advice choosing heads for a cammed 6.0L
I recently swapped the stock cam in my truck for a comp 212/218 114 LSA and I love the added power. I picked up 40hp at the wheels and on the dyno I'm at 306 rwhp and 317rwtq. The problem is now I want more power and I dont have the money for a magnacharger. I have been looking at head options and talked to a few people about the issue but I want to get as much information as possible before I make the purchase. Currently I'm looking at the TSP LS6 stage 2.5 heads. I have been told I would see gains in the 30-40 hp range at the wheels. My budget is about 1200 max. Would this be a good setup with the cam I have? Would I need to upgrade anything else such as the injectors or fuel pump? Any help would be appreciated thanks.
10-14-2009, 06:41 PM
#2
You will probably need injectors, I'm suprised you don't already, but your pump will be fine, lt headers would also help down the road after the heads.
I think the LS6 heads will raise your cr a little also, not positive though.
I think the LS6 heads will raise your cr a little also, not positive though.
10-14-2009, 06:58 PM
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i would say tea ls6 stage 2 heads flow the best there the ones i bought for my lq9
there $1320.00 Using customer supplied cores. $1800.00 With new GM cores.there flow number are crazy heres a pic of mine
there $1320.00 Using customer supplied cores. $1800.00 With new GM cores.there flow number are crazy heres a pic of mine
10-14-2009, 07:51 PM
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what dyno did you run your truck on ? Also I would buy a nice set of used 243s should bump your compression up to 11:1 and make for nice throttle response and power.
10-15-2009, 08:48 AM
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why do you say that, why not l92 top on a lq4
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10-15-2009, 10:06 AM
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10-15-2009, 01:52 PM
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A 6.0L lq4 with 70cc heads on it will only be 9.6:1 compression. This is complete weak sauce. Any performance 6.0L I wouldn't run unless it had a minimum of 10.25:1 compression. With the aluminum heads this is like having only a 9.25:1 compression iron headed engine. Heat=energy. Energy=horsepower. This is why I always wanted to toy with a set of the old iron heads that came on the early 6.0L's. They're cheap, strong, heavy (worst part) and should yield a good amount of power on the cheap.
Back to the L92 setup. Go for it if you're going to get at least 10.25:1 or better. For those who want to argue, I can post graphs of another members stock LQ4 TR224 cammed truck vs my 10.6:1 compression LQ4 with a smaller cam. I'll show you the difference in low-mid range power and even more up top.
Back to the L92 setup. Go for it if you're going to get at least 10.25:1 or better. For those who want to argue, I can post graphs of another members stock LQ4 TR224 cammed truck vs my 10.6:1 compression LQ4 with a smaller cam. I'll show you the difference in low-mid range power and even more up top.