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What do i have to do in order to change my engine from a 3.8 to a 5.7

(2002 Buick LeSabre)
in Garnet Valley, PA on January 31, 2014
my head gasket blew so i just chose to change out the engine i have a friend who has a 5.7 l for sale just want to know if it can be done?
Displaying 2 answers & 2 comments
Popular Answer
on January 31, 2014
It is not impossible, just next to it!! It wont fit the car! Fix the 3.8!..... Replace it with another 3.8 or junk it!
on January 31, 2014
could i put a 4.2 in it? i just want a bit more power if im going to put a new engine in it
on January 31, 2014
You can put a jet motor in it if your pockets are real deep! If you change the engine it has to be one that will be legal to drive.... EPA!! Now that 3.8 has all the power you need if it's running right!!
of Greg's Orange Auto on January 31, 2014
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