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LSX LS7 heads Vs LS7 heads

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Old Aug 24, 2011 | 04:18 PM
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Question LSX LS7 heads Vs LS7 heads

What is the difference between LSX LS7 heads and the LS7 OEM heads? The price for the LSX LS7 heads are substantially less than the OEM Ls7 head... Why?
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Old Aug 24, 2011 | 04:40 PM
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Links to whatever you're comparing would definitely be useful on this one!
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Old Aug 24, 2011 | 05:31 PM
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The lsx heads have as cast ports but all the same valves as ls7 heads. The ports are a little smaller. I recently did a 427 build (ls7 block) with the lsx heads. I ported the heads and matched them up with a fast 102 intake on my build. I am very pleased with the results. The high rpm performance of my valvetrain is very good...hardly any droppoff at 7k.
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Old Aug 24, 2011 | 05:33 PM
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a 427 build is my dream. street strip.
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Old Aug 24, 2011 | 06:11 PM
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LSX / $777.50

http://sdparts.com/details/gm-perfor...parts/19166977



LS7 / $1,106.70

http://sdparts.com/details/gm-factor...parts/12578450
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Old Aug 25, 2011 | 09:09 AM
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So, when I go to wcch for my port and mill, I might as well get a set of these for him to work on...
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Old Aug 25, 2011 | 12:38 PM
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Originally Posted by PUNISHER TA
So, when I go to wcch for my port and mill, I might as well get a set of these for him to work on...
I just found out about RHS Pro Elite heads. They look very nice and RHS puts out bad *** parts. I posted a thread to see if someone would chime in about them.

There is also the Brodix BR7 heads and Rich @ WCCH has a CNC program for them.

https://ls1tech.com/forums/generatio...l#post15311595
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Old Aug 25, 2011 | 08:13 PM
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Default Lsx ls7

We do the lsx-7 heads cnc ported with stainless severe duty valves and double springs , ttitanium retainers , ready to bolt on for 2375.00 for the pair


GM LSx-7 report CNC
2.205 intake and 1.610 exaust
Lift Intake Exhaust
.100 76.9 73.9
.200 166.7 126.6
.300 244.9 172.8
.400 308.9 217.4
.500 349.1 242.7
.600 377.3 256.1
.700 395.3 264.7
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File Type: pdf
Flow chart 1.pdf (94.6 KB, 421 views)
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The LS7 is CNC ported. The LSX is not.
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