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Efficiency Expert

In order to meet the compression target with the LS6 cylinder head, a new piston was required compared to the outgoing LM7. Note the oil-shedding anti-scuff coating on the skirt. This was an improvement made late in the Gen III's development. View Related Article

Ford Shelby GT500 Research

Read detailed reviews on the all new Ford Shelby GT500 and compare it with other vehicles you may be thinking of buying. The 2010 Shelby GT500 has fuel economy of 18 mpg and can seat 4 people comfortably. The Ford Fusion and the Cadillac Sts are other vehicles that might interest you.