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We've now had a couple of weeks to digest the new 620+hp LS9 V8 in the Corvette ZR1, it's time to see what else the GM Powertrain team has up its sleeves. The other half of the GM power duo to be displayed at the 2008 North American International Auto Show is the 2009 Cadillac CTS-V. The CTS-V is propelled by an engine closely related to the LS9 and carrying the designation LSA.
Like the LS9, the LSA is an aluminum block 6.2L V-8 with an Eaton 6th generation two-rotor supercharger. The basic configuration matches the LS9 with the blower sitting in the valley of the block. An air to liquid intercooler sits on top of the supercharger. Differences between the two engines are primarily intended to give the Cadillac an extra air of refinement compared to the sports car and result in the LSA "only" producing 550 hp and 550 lb-ft of torque. Read on after the jump to learn about the differences between the LS9 and LSA.
