Has anyone run LS6 heads milled to 62cc and ran up to 15 lbs of boost?
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Has anyone run LS6 heads milled to 62cc and ran up to 15 lbs of boost?
On a stock displacement 346/7 forged motor? Thinking of milling my ported TEA LS6 heads slightly down to 62cc so i can reach my desired compression; and has anyone done this successfuly for a sig. period of time (without having issues with the heads blowing head gaskets, etc., etc.).
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Yeah JOHN I am thinking this is very doable but need to make up my final decison tommorrow and leaning towards the 62cc milling as its really a small amount of material and I won't see more than 14 to 15 lbs of boost MAX when I am driving her ***** to the wall.
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Yeah JOHN I am thinking this is very doable but need to make up my final decison tommorrow and leaning towards the 62cc milling as its really a small amount of material and I won't see more than 14 to 15 lbs of boost MAX when I am driving her ***** to the wall.
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Andy, you point is well taken and you may be 100% correct as we are talking about 9:5 compression vs 9:7 (but I really want that small compression gain).
Yeah DARTS would be a no brainer as they have a much thicker deck than the LS6 heads!
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Those heads are thin as it is. Then if you ever have to do a clean up pass on them?? It stinks changing head gaskets and I think you could make more power with a little more timing than you could make from .2 of compression. JMO.
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Good point, and CHRIS at POWERHOUSE PERF. told me the exact same thing today! You are starting to convince me to stay with 64cc heads and 9:5 to 1 compression!