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Old Dec 9, 2022 | 09:02 PM
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I have a 2003 Lq4 6.0 I ordered some pro LS summit flat top Pistons for it have a set of 799 heads going on it with a summit stage 4 truck cam226/230 112+4 .550/.550 cam with long tube headers cold air intake. Does anyone know roughly how much hp this will make

Last edited by kovich2806; Dec 9, 2022 at 09:43 PM.
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Old Dec 10, 2022 | 09:19 PM
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Basically you would have an iron LS2 with a mild cam. Ballpark 450ish
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Old Dec 21, 2022 | 11:25 AM
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OP,

Thank you for your patronage.

@jetech's observation is pretty spot on here. We would estimate this combo to end up around 450-475ish hp. Get a good custom tune to optimize the combo so you get the most out of it.
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Old Dec 21, 2022 | 06:14 PM
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@Summitracing Thanks. Almost all of my parts for my '71 RS Camaro build has been Summit Racing. Very good company to do business with.
OP like mentioned above...I told my tuner he was a magician! I couldn't believe what a difference the final tune made in my swap!
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