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While the 5.3L LS4 V8 was the first car engine to feature Active Fuel Management ... the LS4 powered the return of two iconic cars: The Chevrolet Impala SS and Monte Carlo SS.
First on the options list was the 327 (5.3-liter) small-block with ... and 425 horsepower. This Impala SS no longer comes with the factory engine under the hood, as in charge of putting the ...
These cars drive very smooth. I love Impalas and only buy them.l We purchased a 08 Impala SS. Has the 5.3 motor but it does 24 city and 16 highway. Good family car and still has the sporty feel to it.
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