A set of heads I’m setting up, started off as a nice set of real LS6 take offs with zero miles. Still a lot of work to do, but ext. port layout is about done, This is with the stock valvejob still, and throat size still small @ 1.325 and ugly so don’t mind it till a real VJ and blending is complete. I may just finish the stock stuff that is in right now. And see what it makes, I’ve done some other super budget, stock with miles VJ. On shitty LS1 casting and made more power then just about any other ported factory casting LSx heads have on neweras dyno. So It’s kinda a shame to have to cut them. When it will “work” fine. Might make some small changes after some testing, but at this point I’m happy how they cleaned up with a quick sand roll after the work with the carbide burr, to show off. The 243 casting is very bad ass, for what it is. Cars have gone 15xmph NA (sam racing) with this head casting.
rough
sand roll
