6.5L Non-Turbo Optimizer Cylinder Head

Brand new, complete Optimizer cylinder heads for your 6.2 or 6.5L build. Featuring: USA castings that are superior to the GM designs Induction hardened valve seats Complete and ready to bolt on Inconel pre-combustion chambers This set has the slightly smaller chambers (square) vs the turbo/diamond heads. Inconel cups are bringing $500+ per set on their own now so these heads are a great value vs other options Sold individually. 2 required per engine. Please contact us before purchasing if the website is not calculating freight correctly on these!