Rotocast A356T6 aluminum cylinder heads that are stronger and handle heat better
than conventional heads Lightweight titanium intake valves and machined connecting rods for reduced reciprocating mass High 10.0:1 compression ratio — for a forced - induction engine — enhances performance and efficiency and is enabled by direct injection Forged aluminum pistons with unique, stronger structure to ensure strength under high cylinder pressures Stainless steel exhaust headers and an aluminum balancer that are lighter
than their LT1 counterparts Standard dry - sump
oiling system with larger cooler capacity
than Z51; used with dual - pressure - control
oil pump.
Air cooled, rather
than oil cooled, the Sportshift ™ II system takes advantage through the deletion of the
oil pump and associated ancillaries saving 24 kg over the
conventional six speed Sportshift ™ system.