Quote:
Originally Posted by DSX
Can I ask why you went with LS3 heads over LS7 based cylinder heads? The flow on the LS7 based heads is just so much better. I went with CNC'd LSX-LS7 heads on my twin turbo 427 for my Z06.
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This build was originally going to have a custom made supercharger set up with a Vortech V24 Xi Trim supercharger and 30lbs of boost.
The customer decided that that might be a little too crazy so we toned it down to the YSi. The bottom end is still built for 2000 HP. So we can do just a head and supercharger swap later down the road for crazy HP.
The goal was only for 950 to 1000 HP with this setup so we didn't see the need to switch heads. Also the customer wanted to use something since everything had only 660 miles on it.
We did put Ferrea Competition valves and extreme exhaust valves in the factory heads with a CNC program for the runners.
I do agree that the LS7 style port is far better and was in the original build.
Thanks