Quote:
Originally Posted by ULTRAZLS1
Well the G6X3 was originally designed for the stock LS3 heads which have a larger runner. For this reason many of the cams use a wide split between the intake and exhaust valves for best performance on low velocity runners. The specs on the G6X3 have never been released but I think it is in the neighborhood of 235-242 from the research I have done. Whether or not the increased velocity of these heads will help or hinder the G6X3 has yet to be seen.
It should work just fine but I guess you never know...it would be just my luck if it runs like crap :(
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Even if you're not satisfied with the performance of the cam...the G6X3's sell for decent money used too, and it's not nearly as much work to slide a different custom grind cam in there compared to the heads and cam this time around. I think it'll run pretty good, but I don't know as much about those heads as you do at this point.