|  |  | | The V-6 has a lightweight aluminum cylinder block with iron cylinder sleeves, an aluminum structural oil pan and aluminum cylinder heads with four valves per cylinder. It builds on those strengths with components and technology developed specifically for the turbo system, including:
- Twin-scroll turbocharger delivering approximately 9 pounds of boost (0.6 bar) - Integrated charge cooling - Unique cylinder heads made from 356T-6 aluminum and featuring sodium-filled exhaust valves - Forged steel crankshaft and sinter-forged connecting rods strengthened for turbocharged loads - Pistons with anodized ring grooves designed for turbocharger boost pressure - 9.5:1 compression ratio - Piston oil cooling jets - Unique camshaft profiles designed for turbocharger performance - Hydroformed "dual skin" exhaust manifolds with stainless steel inner liners - Engine-mounted oil cooler
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