This depends on a couple of factors, including the year of the vehicle and whether the engine is the original. The latest model (the 2012 Chevy Impala) will include GM's 3.6 liter v6 engine; it reportedly packs 302 horsepower.
The 2009 chevy impala lt 3.5 has 211 horsepower but is a v6. You an get the 2009 chevy impala ss 5.3 which is a v8 with 303 horsepower
Top of engine on the passenger side.
There were 3 horse powers for the 327 engine - 250, 300, 340 and the 400 had either 400 or 425 horse power. There should be a metal plate in the engine compartment or near the latch on the driver's door telling you about that car.
If the Impala is the same as my 2001 Monte Carlo with a 3.8 L engine, the resivoir is on the pass. side way down low in back of engine compartment. You need a bright light to see it and it is very hard to get at!
Power steering pump reservoir. Back of engine passenger side.
I think it is around 160
303 HP
375
170hp
200
on my 2001 3.8 litre the power steering pump is at the back of the engine under the alternater.
you kick him in the but