To port or not to port
12-26-2011, 10:32 AM
#1
To port or not to port I recently purchased a set of ls6 heads for my ls1. Im looking for 400 rwhp through an m6. Is it worth the 500 bucks to have them ported? Because I am going to be running nitrous to get to my 500 rwhp goal. Thanks for the help
12-26-2011, 12:45 PM
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You should be able to hit 400rwhp pretty easy with those heads stock and a relatively mild cam. I just went through the same debate. I ended up just having a valve job done on the heads and having them milled .0030 to bump the compression. My particular combo should make at least 420rwhp. I will have numbers in a couple weeks once I get it all together.
12-26-2011, 05:41 PM
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Home-porting mine set me back a week's worth of evenings and under
$50 for the electric die grinder and long shank burrs. But I can't claim
to have made great gains, just that I didn't screw anything up.
$50 for the electric die grinder and long shank burrs. But I can't claim
to have made great gains, just that I didn't screw anything up.
12-26-2011, 05:57 PM
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I agree. I did very slight porting on mine as well. The area behind the valves seemed to have the most imperfections in the casting.