The heads are only $700 after the core exchange from liberator performance. I don't think it's necessary, but I can't think of a reason not to do it especially with the history of the 6.0 motor. I have been on powerstrokenation.com and there are several guys with ARP head studs and new gaskets that have still lifted heads. I haven't found a single story of a guy lifted a o-ringed head that wasn't a drag truck. I want 550-600rwhp.
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2007 C6 z51 416ci, KW variant III, Wilwood WS6, Traqmate.
2005 F-350 PSD 4x4 DRW Lariat
2013 Mustang GT Grabber Blue, track pack, Brembo, Recaro, 3.73s
2009 Jetta Auto 2.5 liter
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